I too am anxious to see what you do with it. Please keep posting pics. It is a great engine- very powerful.
I have been wanting for a more permanent way to fix it than the FRP and silicone approach.
They just didn't give a whole lot to work with there with that short stub. Ahh- the chainsaw price wars....
I'd gladly pay another few bucks for a real carb flange.
I would prefer to fabricate something metal- with a heat shield spacer between it and the carb.