Hi Gang
I'll suggest what NOT to do.... use a Saito 182 Twin!! I have one in mine & it sounds nice, but the added 14 oz over the 150 single does not help the landing speed much. I have a second GeeBee in the box in case version 1.0 bites the dust. I added a 20oz tank since the 182 would drink the stocker dry before I could take off & make the three landing attempts I need with this brick. Next edition will go light; single cylinder saito.
I'm not much of a fan of the stock pushrods, I replaced them with some carbon ones. Also, I'd recommend some longer screws for the pants to prevent the threads from coming out. The robart struts will help the bouncing problem, but the added weight and $$ kept me away for now.
Good luck with yours!