There is a boat yard in Kudat in Sabah province on the Island of Borneo. Not much in services but they can haul you out and arrangements can be made to leave the boat for extended periods. This is a commercial
yard so you have to do all your own work. Apparently no problems with the boat and of course the weather
is safe in the area. All parts
have to be shipped in but Malaysia customs
are not a problem.
Another option is Brunei, Atoll Yachts in Kuala Beliat has 2 good scandinavian ship wrights with a large local crew who can perform any refit
. Their carpentry is beautiful as well as any glass work that is required. Again, everythin has to be imported and the customs
process is not as easy but once you get everything formalized there is no problem. We sent everything but the galley
sink by Fedex and they were very helpful in making this work even going with us to the capital to meet with the customs officers to get shipments precleared duty free for a yacht in transit. Not a lot of room here, only 4-5 boats but they are a rather new yard and are expanding.
Other than that you will have to go to Peninsular Malysia which a long way. The other good thing about Brunei is that the diesel
is only 0.39 litre but you have to get a local to get it for you. The yard can make arrangements.
Good luck to your brother and let me know how he makes out. We will be in Brunei in Jan and heading for the Malaca Str.