Buggeroff6

If I go caveat emptor with an installer, I'd like to have SOME idea if the LED (or even HID) 9005 and H3 positions (hgh beam/drl and fog) have any guestimateable clearance behind them for mounting aftermarket....will I be seeing 2" or far less in those positions, and will those multi ribbed radiator heat "sink" things be my only choice (instad of fans or something else)?