Does anyone know of any alloy wheel suppliers/maufacturers here in Thailand. Every shop and garage in Nongkhai seems to sell the same old boring stuff and I was hoping to find something a bit different.

Guemlum

Sounds like you need to take a trip to Bangkok? Take a look at the pinned topic about Motorbike directory for shops in Bangkok, or if you don't find anything useful there, PM me and I can tell you BKK bike shops you can try.

An alternative is find a good bike repair shop and tell them what you what; they probably know how to source things locally. Will save the trip to Bangkok and pay a bit more, but save alot of effort.