['63GENIII]

Welcome to the forum! Nice birthday present too.

If the truck sits on the Burb frame securely (Im not really familiar with the differences between the Burb and K series frames), I would just keep it on that frame and add a disc front axle from say a '73 up truck. You could probably install one of Captain Fab's power steering adapter brackets to get the PS set up. If you're really intent on getting another frame, I would try to stay within the '63 - '66 K series frames since you'll be able to bolt your cab and bed down to it fairly easily using factory or even reproduced parts.

Getting power disc brakes and steering is a fairly simple affair. Lots of threads here on this subject.

My '62 was sitting on a '72 Burb frame when I got it. It was a pretty sketchy conversion. I really didn't want to spend the time and effort to make that truck right. Ended up selling it.

Im sure others will chime in here and offer good advice. Good luck with your build! You have a fair amount of time. Read up and plan it well and you'll have a sweet ride for your 16th!