Looks like RC and I struck a nerve. Sorry about that.

My reasoning is that Jim already has the G-62 so why go out and spend a few hundred dollars for another engine? The G-62 doesn't weigh much more than a G-38 and isn't physically much larger. I have both. To fly the Spacewalker realistically doesn't require that the G-62 be run at full throttle. For realism, a bigger engine turning a larger prop slower sounds a lot better than a smaller engine turning a smaller prop faster. As far as cutting the required holes in the cowl, the individual involved needs to decide if it will be acceptable. If a true scale airplane is desired then maybe a totally different engine is needed but there go the big bucks again.

Ken