Thanks for the responses. I would certainly be open to using 40LAs instead of the Pro 36 engines. I was thinking the Pro 36 would be more reliable. I had a 40LA in my trainer years ago and had problems with it. But if you all are having good results with 40LAs then I will try them again.

Robby, I'm not quite ready to purchase the DC-3 but I'll keep you in mind when the time comes.

Thanks