ck,
You didn't say which model FA you have. If it's a Model 97, I wouldn't bother with the trigger over travel screw. Take a close look at the trigger reset while slowly cocking the hammer (gun unloaded of course) -- the trigger moves rearward when the hammer is cocked and forward as the sear is engaged. Anyway, I haven't found it to be useful on the M97. Can't comment on M83 as neither of mine are so equipped.
It cost me $77 to ship a M83 to Freedom Arms via Fed X. I insured it for $1,600. You have to ship Next Day air with either UPS or FedX. It's cheaper to use the USPS, but you have to do it thru an FFL Dealer (Individuals can't ship handguns via USPS). The return shipping on my FA was $50, so the total shipping charges were $127. As they say, your mileage may vary.
FWIW,
Paul