Personally I'd buy Marlin or sky's hi-steer kit and grab the u-bolt flips from datinfab.com That would give you the absolute best bang for the buck that will last for a loooong time. The hi-steer canbe had cheaper but its on a you get what you pay for basis.
![Wink ;)](https://board.marlincrawler.com/Smileys/marlin/wink.gif)