We decided we wanted to replace the faucet in ur 20 year old kithcen and figured while doing so that we might as well put in a new deeper sink as well. The last time we decided to swap faucets our plumber said we should pick up whatever we'd like at the a big box store but stick with a brand name since you are more likely to find parts for them down the road. He did not offer us a catalog or anything. He simply performed the labor.

This time we picked up a moen faucet and Kholer sink. He quoted my wife as much as $300 over the phone for the install....maybe a little less. I am happy with his work but I thought this sounded a bit high...times are tough I know for him and me. My wife thought it sounded a bit high too but thought it was because we did not buy the sink / faucet thru him...again last time he directed us to the big box store so I just did the same this time.

Is that price out of line to remove an old overmount sink / faucet and put a new one in?

Do I need new drain kits? If so do I buy the ones that are $15 or $25 or the Khoelers that are $50 a piece or do I expect the plumber to have these?

Is the 18 gauage sink sufficient....my 20 year old (likely builders model) sink has the entire bottom sprayed with a rubbery substance likely for sound deadening. The new khoeler has only rubber squares here and there.

Thanks for the info.