it would be fairly straightforward, firstly tack it together straight , then grind all the damaged areas off to a bevel and wrap new carbon in place with epoxy resin (remembering all the inner layers are unidirectional ) over the ground area , a "bulge" would actually make a stress riser and should be avoided ,given how cheaply that frame will sell for it would cost only approx 1/10 of the normal price after repair and would be perfectly safe IMO.