HI t Michael,
I have a Parrott P-47 and have flown it off and on for 12 years. Started off with the Fox .35 and after a season went to a retimed FP-40. Have used a McCoy 40RH in it also. If I extended the LG a touch, I would definitely use a ST .46 in one. I will build another, one day, a *little* lighter and with a .40-.46 to start with. it is a very, very good flying Classic era plane, and suits your criteria. I am not aware of another P-47 in that size.
Pat Johnston can scale plans, up or down, and at last word only charged an extra $20 to do it above the cost of the plans (from the Brotherhood of The Ring website).
Mongo