RcHorn -

I have to agree with SilverSurfer on this; a Moki 1.8 probably won't have the power needed to fly this plane very well.

I'm in the process of building this kit right now and I can tell you that it's a very "overbuilt" kit. If you can get yours to come in between 18 and 20lbs, I'd say you did great. This kit is very heavy in the tail and will require 3-5 pounds of lead up front to get it to balance. Most guys I've been talking to on RCU are putting in engines in the 50-60cc range. I'm putting in a 3W 60cc rear carb engine in mine. The BME 50cc is a great engine for this plane and will drop right on in on the rails in the kit, but you'll have to hack a hole in the cowl for the side carb. I chose to go with a rear carb engine to minimize this, but you'll need to make some major modifications to the firewall to do this. The heavier (and more powerful) engine also reduces the amount of weight I'll have to add up front to balance it. Granted, the cylinder head will stick out the bottom of the cowling, but I'm not to concerned about it since it'll help with cooling.... another thing to think about.

Good luck. There's a lot of good advice on building this kit on RCU.

Joe