Replace a 16V cylinder head 944S with an 8V ???

Hello, has anyone ever replaced a 16V cylinder head of a 944S with the 8V cylinder head of a normal 944? My father-in-law has been standing a 944S with a defective engine in his garage for 8 years and I am now seriously considering taking over the car. About 8-9 years ago he experienced the fate of many 944S drivers – timing belt tear. He then bought a new cylinder head with valves etc. for a lot of money and assembled everything again. When everything was finished and he He started the engine for a few minutes without any problems, but then the gas line jumped off, which was only badly plugged together. In the engine compartment it immediately started to burn. My father-in-law managed to extinguish the fire very quickly, but it has become much sickened and useless (dental belts, wire harness, head seal, numerous plastic covers, etc….) Since that time my father-in-law has left the car in the garage unnerved. I am interested now, to install the normal 8V head of a 944, for that one probably also needs a 944 wire harness with ECU. Is this technically feasible without too big problems?? I would be grateful if someone could give me some advice. How expensive could such a repair be?? Wolfgang