Man still sells the plans. Is the CG the only thing you need? Engine choice is a personal thing. I have flown the plane with a Brison 2.4 40cc gasser and loved it. I still have my Mid West Hots in 60 size, I run a YS 1.10 in it, over kill yes, but I like it!! The Saito 1.25 will get yours off the ground but I know I wouldn't be happy with it. If you look at the MAN plans it gives you some good engine size choices.