What do you want polished?
the cost depends on how much time it takes to get the polish you desire...
the more you pre-prep the cheaper it gets. if its a new casting thats clean and not oil soaked, the process is faster and cheaper. I polish to 3 levels.
3, 6, and 12 inch shines. 3 is just shiney, 6 you can see your outline at a distance, and 12 - almost mirror finish. a 17 is available, but pricey.
some parts cost more than others, examples are intakes any ferrous items, or items with lots of detail, nooks, crannys, or tight corners- as this requires more prep and uses more small consumables.
with a pre-prep of degreasing and bead blasting, I charge 150.00 to do a set of 84/87 valve covers. Takes me about 6 to 12 hours (depending on polish quality desired) for the average set.
if your interested in having something polished, I can do it... but I got a nasty back load of turbos, so as long as you dont want a ton of stuff over night it wouldnt be an issue. other than that, if you want lots of stuff polished.....well you can get on the list?
heres a set im currently working on, ones at about a 6 so far.
A.j.