4 Speed Trans, Goodwrench Motor, Classic Air Q's

[KEH]

Hey guys,
I am finally going to put my truck back together after a 9 year break. It's currently down to the bare cab & frame, I've got to make it driveable in the next 30 days.

I would really appreciate any input you all have on the following questions:

- I have a 4 speed trans that I bought many years ago, but now I don't remember what it is. My notes say it is a Muncie, but looking at some pics just posted on this board the levers are in different locations. The big # on the side is GM 6261886. Wish I had a digital camera -- maybe for Christmas...

- I'm going to buy a Goodwrench crate 350 4 bolt main motor tomorrow. Any comments?

- Which a/c system is better: Classic Auto Air, Vintage Air, or Old Air Products?

Thanks for your help,
Ken