b19 bal, if i could borrow one for a while that would be fantastic mate

I need to see what my odds are of butchering one to fit on a C20LET vauxhall engine as an easy way of running a garret turbo, as the only readily available off the shelf manifold to do it in this country are rubbish, there is a guy in south america who does quite good ones but they are mild steel and i think they may not be strong enough for my application, so im looking for standard (hence reliable) ones that can be made to fit from other cars.