340 Lifter Clacking.... Reasonable Price?

Hey guys....... I have a 340 with one of the hydraulic lifters clacking.....have no idea why.........engine is clean.....just one lifter, and it drives you crazy..........

For anyone out there with the general knowledge, what would you consider a fair price to have the intake lifted, and a new set of lifters installed?

Secondly, if there seems to be a further problem with scoring, how much should I expect for them to remove the front end and change the cam while they're at it?

I am TIRED of getting ripped........I've had my share of mechanics taking advantage and overcharging.............. I know a new cam and lifter set is only about $159. or so.............and there used to be such a thing as "flat rate manual" that most mechanics went by (back in the day, I suppose).

What kind of labor charge do you suppose would be fair? (I KNOW there are a few variables here, BUT how about a ball park figure from someone with experience...........??)

Thanks....... Doc