How much will it cost to get all this done? on 2000 Buick LeSabre

I need an estimate on how much it would cost, at cheapest, to get the following things on my 2000 Buick Lesabre fixed/replaced; new front control arms, new rear lateral arms, ac clutch barring compression, rear brakes, rear calipers, muffler, bushings and coolant elbows.

Asked by for the 2000 Buick LeSabre
about $1250
Thank you!
Is that with used parts and no warranty?