New here and introducing myself and truck

[mild68]

Hi guys, I just joined this board and look forward to learning what I can about these trucks and apply it to my build.
My name is Jerry. I live in Illinois and took a trip to Daytona Florida last week to go to the Turkey Run. Long story short I got a souvenir from Florida.
A 68 Chevy swb step side.
My plans for the truck are to tear it down, clean the paint the frame, under body and any and all components then reassemble. Doing a LS swap, Most likely 5 bolt wheels with front disc brakes, change out the cab fuel tank with a frame mount.
I have been reading posts and builds. If I can get some help and guidance as far as these changes I would appreciate saving me research time.

I need to find out what to use for front disc brakes. I think I can use 73 and up brakes as long as I use the control arms?

Not sure what to get for rear axles w 5 x5 pattern.

I was told I can use a 91ish Suburban gas tank in between the rear frame rails.

I'm almost done w a LS swap in a S 10, Any preference on LS motor mounts?

The truck does need patch panels that are with the truck. Rockers and cab corners. The wood in bed in nice.