First, I have no experience with the Standox paint material. Your father's experience is probably as good a reference as you're going to get on both the material and the shop.
One bit of advice, however. It is almost always a bad idea to ask a paint shop to use materials that they are not familiar with. Paint is not just paint, and the working characteristics can vary quite a bit from one material to the next. If you want to use a different paint, you should probably find another shop as well ... one that specuializes in the paint you've chosen.
[This message has been edited by Marvin McInnis (edited 03-24-2004).]