I'm trying to furnish a shop and I need some advice. I've never used turning tools before and though I can sharpen a lot of things, I feel I should get a new grinder along with a Wolverine Sharpening System and the Vari-Grind accessory. I've already cleared it with the boss, but I don't want to strain the budget too much. I see HF has a 3/4 HP 8" bench grinder with 3450 RPM and a 5/8" shaft. Can I get by with a 6" grinder and would one with different speeds be better? Also, what is the best wheel to use on a grinder to sharpen lathe tools? Thank you.