Cheap 318 build questions

I have decided to follow your tips and go with that 80's engine. Heads are 302's and I have worked on them today, the valves are tight and sealing now. Don't have time for any porting except for matching the intake.
Haven't had time for looking what I have but I should have an iron dual plane that will work. Think I have a 600 or 650 carb too.
Will build a 2.5" inch dual H-pipe exhaust since I have a pair of 2.5 Flowmaster lying.
I'll try to recurve the original point distributor and limit the advance. Cheap you know ;)

Just swapping the cam and re use the lifters sounds like a good idea. Where can I buy one?
I'm in Sweden so I need to find someone willing to ship overseas.

Guess truck weighs around 4600. Have no clue about gearing but I'd be surprised if it's not something like 4.10. Tires are 235/75-15 but I hope I can find some used 32"