The Wooden Model Company - Cars, Planes, tanks, ships, helicopters, motorbikes
Appears to be UK based, and although it looks like they mainly do wooden, their website does talk about doing comissions with specific livery, so they might be worth contacting, if only to get a price point to compare to the Philippines ones.
Depending on what you want a model of, another alternative might be to approach a local plastic modelling club (or maybe at a show) and see if anyone would do a comissioned model for you. Obviously standards vary (so don't ask me, for example!) but there are some people who build stuff that is easily museum quality.