I have had good cs from them. A guy I know broke his trigger guard on his triumph and they sent me one to put on it no questions asked. Actually sent me two since it took 10 months for the first one to finally show up.
Might be with an actual trigger they would want a gunsmith to work on it for liability reasons, but I'd still chech to see if they can send you what you need.
I think you might be better off just buying a different used one that actually shoots well. Look at armslist.com.. There always seems to be some on there.