We've spent three weeks
on the hard in Raffles Marina, also DYI, travelift and good stairs, but not sure about the size, might be too small for you, Rebak gives you only ladder and it's a bit far to town as well, but Rebak is much nicer than Raffles. Raffles Marina is rather far away from the town, but Marintech (excellent chandlery) delivers and there is (overpriced!)
chandlery in the marina. When in Rebak, you can go to Satun (Thailand), viz the link in previous post, for
cheap paint (International, but different names), they will can do stainless.
If you need
stainless steel you need to get it in
Singapore or Penang (also by
ferry from Langkawi) or
Thailand.