found a sx-1 trap for sale it has m/c, 30" i/m bbl.very very pretty wood(90% plus) bluing is very good, recoil pad has been replaced "good job". i don't know the difference in ribs or trigger groups. the rib is slid on dovetails but don't know whats holding it there. there are no screws that are visible. also i didn't check the trigger out as it had a lock on it and the guys at the store were busy. the bbl looked very good. writing looked very crisp i don't believe the bbl to be reblued. also very little wear in the action. what should i look for in the trigger and bbl when i go back? were the sx-1 bbls drilled to accept a spring deflector? almost forgot the s.n. is #M83553. any help is appreciated. dennis. p.s.what is average$$ for something like this?