I dont doubt I will need to add a bit of nose weight but the engine is heavy enough. On my 182 I ended up putting my two battery packs next to the firewall. NO additonal weight was needed. I will be using twin packs on this one as well. I will be mounting the engine and balancing before I have to cut the cowl or anything else. I just hate adding dead weight to any plane. YUP the 50cc twin would be too much..plus you have to consider prop clearance as well. I will most likely be using a 13 x ? 3 blade. If a 14 clears then I will use my 14x6 3 blade. I'll keep all posted. I have not heard of anyone else having one or even seen a video as of yet on any either V or T tail...