Welcome to the forum. You just stepped into kind of an expensive hobby with resin kits (aka garage kit). If you watch some of the Tested videos, Norm and Frank go through some of the basics of painting kits and there are also references of some smaller, less costly kits. Many are produced in small batches by independent makers. You can check out some places like Monsters In Motion who sell kits. Also ebay is a decent place for resin kits, but just avoid anything from Singapore or Thailand as they have been know for decades for casting poor quality kits with bad resin. I've built a dozen resin kits with dozens more still in boxes.
Here's the link to ebay category for Character Figures resin kits in the US
http://www.ebay.com/sch/Character-Fi...dmd=1&_ipg=200