I'm guessing you meant to type Corvair. I like the engine immensely and find the 3.0 120 HP to be very reliable and the price (at my time of purchase) was very reasonable considering most alternatives in the same price range were VW based which wasn't enough power or engines with ongoing concerns I didn't want to deal with.The corvsir sparked my interest butvthe conversion cost snd low hp was not attractive. That and the old technology cylinder heads and old core parts again made it un desirable to me.
But the Corvair is a heavy engine and in my aircraft I did have to make a change to get the CG to come out correctly but all that was needed was a battery move to the rear. I don't think you are going to find it too difficult to make your project work.