A - three car spots at a fruit packing warehouse plus a fourth for a loading dock, including end loading;
For the packing warehouse, possibly a modernised reefer (Intermountain or upcoming Genesis modernised older cars with the exposed reefer unit, a bit of modellers licence might also get you one of the nice modern ones from BLMA/Exactrail too) - but more likely RBLs (insulated boxcars) - examples might be the Atlas Evans 52' DPD boxcar, the Exactrail 'Beer car' or the PC&F cars that Athearn/Genesis have done would all be suitable - ignore the colourful 60s/70s schemes (mostly) and look for the plainer ones for modern use.
For the loading dock i'd call that a team track and use it for any other traffic. Boxcars, flats, whatever.
B - yard lead with a team track and scrap yard at the end - one spot for team gtrackj and two spots in scrap yard;
I have a suggestion along Brian's lines but slightly different, i'd take these two industries off this lead and leave this one as a nice long combined switch lead / storage track - that way if you worked it with a local switcher you can drop the outgoing cars off a through freight easily on that kind of track.
The 'team' function is already taken by the end of track A anyhow...
C - paint manufacturing or vegetable oils canning warehouse - two spots;
Is the industry big enough? If it is you might want a second spur there? No need for it to be next to the building.
For paint, inbound would be a range of chemicals, styrenes, resins - tanks and possibly some covered hoppers? Lots of nice conflicting Hazmat codes to give your switch crews a headache.
They might ship finished product by rail (plain boxcars) but my suggestion would be to not bother in the modern era (they can use trucks) and you can then use the real estate to handle a bigger range of cooler tanks and covered hoppers!
Tank cars are a real minefield as they are highly specialised, might be worth an ask on something like the MFCL for some more specific suggestions once you tie down what you want to be being shipped? (Or the other way to look at it is what cars are available and model the flows you can get the cars to handle and ignore the ones you can't!)
I'll take a guess at resins moving in covered hoppers, might be an excuse for one of those colourful Sclair ACF4650s (Intermountain or Atlas) - or plastic pellet designs ACF5700/5800 from Atlas or NSC car from Walthers
Reference:
http://www.madehow.com/Volume-1/Paint.html
D - warehouse witnh flour spots - industry/industries to be determined;
Will come back to this...
E - lumber yard with two roads each taking minimum two cars each, one for woodcip loading, the other for loading lumber loads - all sit in front of a low relief lumber mill shed that hides a lead for siding D but alos doubles as off scene location for log loads in and other industries on an industrial park.
I think there's a problem here - much cut lumber these days is in centerbeams (Walthers, Exactrail or Atlas do models) - but you don't have a suitable space to load a centerbeam as you need access to both sides of the car at once or they fall over.
For Texas I would suggest a building supply co receiving lumber from more tree-infested Northern states rather than a sawmill, I would suggest putting your lumber yard at D - where you can leave lots of space one side (and assumed space off-board the other) where you can unload centerbeams properly. You might also get some lumber or building supplies (like wallboard) moving on bulkhead flats (Trainman, Exactrail, Walthers, Athearn RTR) - or maybe even in high cube boxcars.
You can still receive woodchips (for landscaping) - Walthers does both a woodchip gondola and a high capacity hopper
That leaves E empty - I would remove one track and put your relocated scrapyard here. Use any 50' gon, plus maybe some 60's. Athearn RTR, Walthers, Atlas, Trainman, Exactrail all have suitable cars. lots of variety in the marketplace for these and they can be nice and battered - get a whole range and mix em up. Without the switch and with the yard extending into the vee you'll probably still get 4 cars on the single track.
