I'm having a local hose shop (primarily hydraulic) make me a hose for my LPG setup but they don't have any or know where to get any of the female forklift quick connects. So, does anyone have a source for these? Also, just to make sure he's using the correct stuff; what are the specs on the hose he should be using??

I don't know if this is any help or not, but www.forkliftpartsonline.com

There are many, many threads about propane on the Gen4x4 board. I know I've seen discussions on the proper types of hose to use.