Got the oven done now its time to purchase a gun.After doing some research it looks like the pros are saying i need at least a 25 kv gun or don't waste my time.On the other hand i've talked to some guys who say their harber freight and east and columbia guns work just fine useing 12 to 16 kv.Will the guns with lower kv get in the corners and deep areas well?What about second coats?Looks like the cost takes a drastic jump going from 12 to 25 kv.What is the best gun for under say, 400 bucks?Really need some help here.Thanks