Advice please. What's my next step?

[max]

Hi guys,
I'm just after a little advice. I've had my 320/6 for about a year now, maybe it's two?! I've had £800's of welding done including sills and rear boot lid recess repair.
Basically I've been super busy with work and me and my good lady have had a baby! All in all I've had zero time to work on it. So I've had a guy I know work on it in his spare time (he builds hot rods, and finds and preps cars for tv programmes, and he's cheap!). He has fitted new BMW fuel lines, fitted new break pipes and hoses, repaired the fuel tank (although I've got new tanks to fit now).
The engine runs and the brakes are working now, but its been off the road for 15 years so I need to change the cambelt before anything. Do I have a go myself?
I could take it to a garage to get it done and then they could do any work it needs to get it through an MOT, not sure what it would fail on and therefore how much it would cost. It needs a paint job too! I kinda wanted to get that done before the MOT.
What order should I do things?
If anyone can recommend someone good I could take it to, let me know.
Cheers!

[nas80]

mechanicals are more important than bodywork

[Jeroen]

Yep, get the main mechanicals checked and sorted first, then MOT, solve any remaining MOT issues, after that make a plan for the rest. Safety and reliability first.