a few parts

So I've been building a spreadsheet with multiple vendors for the following parts. Wondering if anyone knows where I can find some better prices. Also wanted to see if anyone is selling any of the below items.

Thanks, -B


85MM Throttle Body $299.99 $315.00
85MM MAF $199.99
60lb Injectors $399.99 $482.39 $354.00 299.95 299.94
255 LPH Pump $139.99
Adjustable FPR $95.99
Gasket Set Upper $135.99 $99.00 $123.79
Gasket Set Lower $65.99 $48.79
ARP Studs $115.99 $109.95 $104.99
O2 Sensor long lead $59.99 $60.79

I have a throttle body and MAF, car ran but blew a head gasket, how does half price on both sound for being used?

PM sent...