Im not so experience with setting up themes etc, and was wondering, if i by a installation from 8theme and they install it on a test domain, is it a big job to move it to the right domain when its ready?
Actually, it’s not a big job but you should have some experience.
You need to make a full copy of your WP to new server and get DB dump. Then replace old domain to the new domain in DB tables, import this DB to clean DB on the new server. That’s all. Some hostings offer this service as free service. Also, there are some plugins that could help you with this.
XStore has one-click installation that’s why you may try to install it by yourself and order our installation service only if you face any problems with it.