Thanks for the warm words!
I can honestly say a small Gordon Whitehead sport-scale design is an excellent way to go.
I've built to date, his Tiger Moth (48" span, OS 20FP engine) and his Hawker Hind (48" span, OS 26 FS) both of which would easily take a 30 FS.
Both were a joy to build and fly.
BTW I plan to build second versions of both – I fancy a yellow-with-aluminum-nose Hawker, and another Tiger Moth in red-and-silver (just can't have enough Moths…

), not to mention his slightly larger D-VII and even larger Gamecock plans waiting.
I also built Gordon's little Avro 504K, flew well but a little too sensitive to winds, but this may have been just an impression, or a wing loading just too low...
My only major modification from the J' plan was to have both the wings attached with nylon bolts in place of the rubber bands.
The satisfaction from a good plan-build is something that has to be experienced!