Acer, I just did that exact same thing on the fowler I'm building! The funny part is, that by the time I got my screw up repaired I ended up with the best (single) trigger pull so far.
On the first Hawken I built I got WAY out of alignment on one of the tang screws. By the time I got things aligned I had enough room in there for 2 or 3 screws. So I got out the bedding compound, waxed the $#@* out of the screw, tang and trigger plate, put the screw in the hole, injected bedding compound all around it, and screwed it all together. Compound oozed out and I now need to thread the screw ALL the way out, but it worked like a charm.
On that same build I had started inletting the trigger plate before I had it totally bent to shape. Well, when I realized this and bent it to shape it was now too short and I had a big gap at the front of the plate. That dang plate was about 1/4 in thick so I made up a mini forge out of scrap steel and my mapp gas torch, heated that thing red hot, and started tapping on it against my piece of RR track. After a while it was actually a bit too long and a bit too wide so I filed it to shape for a real nice fit. It was now a bit too thin so I, once again, turned to the bedding compound.