Chris,

I ran the OS 140 the last five years in my pattern planes. It will definitely have enough power to pull the Genesis. Since you're planning on running glow, you shouldn't have any issues with prop clearance. With the Electric setup, a longer landing gear is required unless you are running a 4 blade prop. The latest Genesis kits are coming with carbon fiber landing gear that will give enough clearance for a 22" prop. With the OS 140, I'd suggest running an APC 17x12 or possibly a 17x13.

In regards to equipment installation and CG, many of the planes are generally on the tail heavy side. So with that in mind, you may want to put mount your receiver and RX battery pack more "forward" than aft inside the fuse. I would still mount the fuel tank on the CG. On mine the CG is about a 1/4" infront of the wingtube. I'm running all digitals with Futaba 9550's on the ailerons, 9351 on rudder, and 9650s on each elevator half. I believe Chip Hyde ran one elevator servo on his and mounted it near the pull-pull rudder servo to avoid an aft CG with two servos in each stab. I didn't find the need to do so.

Do you have your Genesis yet? When you start setting up your radio and throws etc. let me know and I can give you my control throws and anything else you want to know. Hope this helps.

P.S. My uncle was from South Africa, but he died about 2 years ago.