Sorry, didn´t comment on your Saito 182 option, I am afraid you will need more power. Should use a 200 or bigger (twin). As for example, I have one Ultimate Pitts from Lanier, which is very similar to the midwest kit, with a YS 140 DZ (same cost of the twin 182) and the performance is extremely nice, this plane is an arrow, truly unlimited vertical performance. You should take a look, I have both kits and I personally was happier building the Lanier (laser cut). Both planes are almost the same size, but I think the S. Stinker (as I see at the field) doesn´t fly as straight as the Ultimate, or might be because it needs more power. Finally, running the DZ with heli fuel makes no sense to use a smoke system, it produces a lot of white smoke that looks nice agaisnt the blue sky.