i might not be opposed to getting one around $100 but where should i mount it and how would i run the lines? Also, which regulator might be a good candidate? (sorry so many questions)
OK, one last time.
What is the rest of the system like? What parts do you have (ie, model numbers for pumps, fittings, filters, etc)? What line/fittings do you want to run (AN fittings, barbs, factory "quick" connects)? What cell are you running? Where did you mount it?
We need some more details. It is impossible to give you suggestions on where to mount it and where to run the lines if we don't know where you are starting from. Also it would be nice to know what fittings you are working with or you'll end up with a bunch of odd adapters trying to get a regulator to work with your setup.
There are several good regulators out there (Mallory, Aeromotive, Magnafuel, etc.). We just need to know more about your setup or we'll just end up recommend something that won't work with your setup.
Edit: To give you an idea, here's how I did mine:
Out of 70-micron Walbro pickups/filters from the cell -->
Earl's Shut-Off Valve -->
4060FI pump -->
4305M return reg --> EITHER back through another
Shut-Off Valve and into the tank OR onto a
10-micron filter -->
pressure gauge then finally into the fuel rail.