see If you have enough room on the flanges to have the cv pattern drilled into them. If not you could consider drilling out your stock flanges. I think every shaft I have ran was non cv on the front and I had no problems. That could solve one issue for you relatively cheaply.
![I Dunno... :dunno:](https://board.marlincrawler.com/Smileys/marlin/dunno.gif)
If you still have your stock front output flange, you can bolt it on the back and run a cv rear with no additional cost.