not that mesa not big in spore. There are not much dealer bringing it in and also the cost for their stuff would be too high for normal hobbist. I believe even if there are dealer bringing their stuff in, it would be at least 1.5k-2k sgd(or more) and above for just their combo amp. As for the high cost, imho, part of it is due to the brand. There are other booteek amp which are really hand built, ptp wiring and cost less than mesa. As for mesa being handbuilt, that cud be just part of what its really is, iam rather skeptical bout that.
Spore power rating at 230v, 50 hz. How about your area? Cab are passive, wont have any problem as long as impedance are match with amphead/combo impedance setting
As for amp tech here, i believe that there are a few here. With the schematic of the amp, some troubleshooting can still be done to clear minor fault(non tranformer related). But one thing to note is that, for most amp, if within the warranty period, something goes wrong and a amp tech(unauthorised by mesa) open up and check, the warranty would be void.