Inner mounting holes need to be moved which is pretty straight forward. I saw a picture of an AirGap manifold that had been converted but can't find it. Being able to weld aluminum would be a helpful skill. There are intakes available new and in the secondary market so unless it was a specific one that was never made, it isn't cost effective to pay someone to do it. On your own time, I'd say grab a W2 gasket and got to town. I was moving down that path when I had my eye on some w2 heads but it never came to fruition.
