Good choice on the 4*. Seems to me Sky Shark closed there doors several years ago and quit cutting kits. I had built a couple of them and they were really nice advanced kits. My problem with them was there small size and heavy weight for such a small plane. The price was also a stumbling block but they were very well designed and a fun build.
When I was still teaching building I started using the 4* 60 kit. Not only is it a nice kit to learn on but also one of the better planes in the air!!