a buttload of questions.

[howdigetsogood]

i have and old rusty short bed small window 64 with no title and overall no knowledge about the truck. i know it has a straight six and a 3 speed. it maybe the original 236 but im not quite sure. i know it runs pretty well but i dont much want to bother with it. i was wondering how much money i could get out of the motor and tranny if i sell it. also i have finally began working on my long bed 64
and i took out the seat, gas tank ,door panels , glove box, and every thing else that comes out simply. the floor has some patch panels in and alot of pitted metal and rust. i been wire wheeling anything rusty and trying to get all the bulky stuff taken care of. im not sure what grit sandpaper to use to get the inside cab all prepped and ready. i was going to paint the whole inside with some rustoleum rusty metal primer and then paint it again after im done with im not sure what yet. how do i go about cleaning up the metal down in the cab corners?? and how do you clean out the drip rail around the roof ? it looks like its been caulked up and i need to redo it. what the best way to do all that?