I'm building two of them right now. A J-3 and an L-4. I'm planning on somewhere around a saito 100 to 120. Final weight will decide that. I didnt want gas because I like the soft putt-putt a cub makes while floating around. Theres one that flys over my house from time to time and it looks beautifull just meanndering around. There doesnt look like a lot of room in that cowl anyway. I'll have the dummy engine on the cowl, just dont want a lot of un-necessary stuff hanging out.
Edwin