Maybe the GP Up-Roar and Fun 51. I have never had or flown the ARF Up-Roar so I can't compare. These are two very easy to build kits and they are both great little flying machines. Did I mention CHEAP!!! Very tough little planes and they both fly great with .46 LA engines. The Ultra Sport 60. A bit more money but I love old style pattern planes and this is a good looking plane with some good improvements. This is one I haven't built or owned myself but I have been known to build a few Bridi kits. Speaking of Bridi you can still get his kits too, as I recall, his son is making them now but I can't remember the name of his company. Bridi designed some outstanding flying machines!!