Old 360 heads

What I've run into with aged heads, especially the lager valve type heads have the seat pounded into them, the guides are shot and typically all the valves need replaced. Unless you have your own shop and equipment, farming this out gets pricey for two heads, especially if you live in a high rent area. Then factor the shop doing the work, is it a performance shop or a guy who builds farm truck 350 Chevy's by knurling everything in sight to make up clearances.