I looked at both of them and if I were to chose one, I would probably pick the Goldberg Ultimate. With a Something Extra, Magic Extra, and UCD 46, I would probably opt for the bigger one. I will do a search on RCU and see if I can learn more about building a Goldber kit. As I remember, they are a quality product. So far, I like all the ideas here, it will ultimately come down to making a choice. I figure that the minimum engine size that I will use is a 61 or better. I do want to keep the size in because I am planning to move up to a 1.20 size plane and want to start moving up in size.

These ideas have given me something to look at and I would appreciate more. Thank you to those who have already responded.