Well this is a long time overdue considering i bought the truck around August 2017 but here she is in all her rusty glory.
I Picked up a 1984 GMC K1500 with a 400SBC, 700R4/NP208 and a Western Cable driven plow, and aside from a slight suspension lift, newer seat and the 400SBC swap it's a mostly stock if somewhat rusty truck, started this project off with a gas can and a battery to get her running and she started with no issues from there i had to replace pretty much every line in the truck front too back, Fuel, brakes, transmission cooler, everything but the upper and lower rad hoses needed to be replaced. I installed all new brake component aside from the master, booster and proportioning valve along with pads, rotors and drums. After i could start the truck and not have it start a new leak my Father and I Started on the rocker(s)and inner fender patches, the rad cradle was toast so it got pulled (accidentally stepped on it later and my foot went right through it) and replaced with a Rad cradle i saved from a 91 R3500 parts crew cab. After a lack of success getting the semi electronic Quadrajet to run properly my father put a Edelbrock carb on it and tuned that for me (I've since acquired a Non electronic Quad that will eventually be put on the 400, best part was that is was free with an intake). I've been driving this truck a little over 6 months now too and from work and a little bit of around town driving, the first (and only) time i took her out of town the 700R4 lost 3rd gear in traffic on the Highway so now she's limited to puttering around town until i get the trans rebuilt (already have the master rebuild Kit just need to pull the trans and get it to my guy to pull it apart and put the kit in). Aside from the Transmission i also have to put new U joints and seals into the front axle and i have new wheel bearings and axle seals for the rear axle as well as a bunch of odds and ends that need to be dealt with.