Welcome aboard and congrats on your truck purchase...
Speaking as an old guy,,,its truly refreshing to find a "yungin" even remotely interested in working on an old truck...
Its your truck, you paint it as you like...but like others here, please make sure its safe (brakes, lights, tires etc) then as funds come along, start making it truly yours.
This group has an exceptional bank of knowledge spread across our members, so when you have questions, and you will have many, just ask away...
Pics always help out, especially if you need to know "what is this doohicky"....
Stay safe and welcome again...