Need gunsmith who works on Verona SX 405 s shotguns

I need a gunsmith who works on Verona SX 405 s 12 ga shotguns. I know it is no longer imported. I found a guy who was doing warrenty work, but he seems to be ot of business.
the gun belongs to a friend. the trigger return spring is broken for sure. but i do not know how to take the trigger assy apart. even if i could, i do not have a spring. And while i can strip, and assemble a M1 Garand trigger housing, the verona is out of my depth.
so can somebody poit me in te right dirction? i've been to numrich's site, as well as midway. i'm gona drop numrich an email, maybe i can geta complete trigger assy. only have to pull 2 pins to swap it out...
one more question. Is the Verona even worth fixing? the friend's shotgun looks well made, i just don't know as much as i should about non military guns..
Thanks all, Charles