1. if you haven't already, get rid of the stock pan. The extra volume will help in a number of ways.
2. wouldn't go to a HV pump unless you had a larger capacity pan, I have heard of them sucking the pan dry, don't want to stack a bearing..
3. I had a blueprinted pump put back in my motor before the car met the wall, motor would see 7800 RPM, so a blueprinted pump should be plenty.
4. Spending some coin on a good oil pump shouldn't be an issue if you consider that the oil is essentially the lifeblood of your motor..

Just my .02

Derek