1979 Chevrolet K10

Chevrolet custom deluxe k-10 pickup truckNeeds some work but has a great strong engine and would be a great fixer upper if you have the time.1979 Chevy k10 custom deluxe. I was told when I bought it that it was a c10 but the registration says k10.Here's a list of work it has had:
New exhaust systemNew brake linesNew power booster
Here's a list of work it needs:Coolant leakTransmission won't get out of second gear except after it warms up from 20 to 30 mins of driving, and even then its a maybe. So it needs transmission work but can still be driven in first and second gear. Been driving it on weekends for 3 years that way.Needs brake adjustment. I think the diaphragm came loose on the power booster because now I have to push really hard on the brakes and they don't want to work.Bed is rusted throughFloor boards are rusted throughWindows need new gear because its getting stripped when rolling up and down with the handleLoose headlightHorn does not always workNeeds new battery holder
Engine is strong and has served me well since 2003, I was told it was rebuilt around 2000
Here is a video for a closer look at it.https://youtu.be/YMQg2H_O24g