Nik! Sounds like you are onto your next project. Good man!
Do you already have the 46FX? If so, I am sure it will work well- (as mentioned above-) but if you are shopping for engines as well, you should consider the Webra-32, Irvine-39, and OS-32SX- Keeping the overall weight down and limiting any CG difficulties! (more $$ though [X(])
I do not have the Zen-30 but I love my Zen-50 YS-63 combo.... These planes are HIGH quality and I am sure you will enjoy yours-
Regards,
james