chassis painted what now?

[TOMATRZ]

i am doing a complete frame of restoration and so far i finally finish painting my chassis what do i do know do i move on to converting my front end to disk brakes or should i hold on if so what is the best bang for my buck do i go with 6 or 5 lug i was thinking of going with a cpp brake kit. or do i just put back my drums for now and and start on replacing the gas tank with one under the bed, running my fuel lines and brake lines. do i wait to do my front suspicion till after i get the truck running again that way i can choose the correct drop for it i was thinking a 2/4 with 20 on the front and 22 on the back? is this a good size combo any issues. people i would appreciate all your comments and help can some one guide me in the correct direction!!!!

thanks appreciated