When you have five more posts on the forum, you'll be able to access the Gun Show Forum and you'll likely get more response there.
I have found my Lee Hardness tester tends to read high. That is, every alloy I've tried, from pure lead to lead tin alloy that I've carefully made myself to commercial bullets have consistently provided numbers 3-5 BHN higher than expected or claimed. I don't know why. I've run through the BHN formula and the tables appear to be correct, so either the spring is weak or the microscope reticule is off. I have found the
LBT tester to be more accurate, so you may want to consider that option. I don't see any sign of it being unavailable. It does cost more.
Re the turret, at this moment Midway claims to have them
in stock for $10, but you'll have shipping on that. Amazon seem to have one for half-again more money, but I haven't checked the shipping. If the Amazon shipping is enough cheaper, the net price to your door may be no different. You'll have to check that out for yourself.