I am thinking about getting an Ultralight 50 upper.  I was looking at the pics on here and their website and the scope seems really high.  What stock would allow you to get a nice cheek weld and see through the scope good?  The only thing I can think of would be a "delta" style cheek piece that snaps onto the top of a collapsible stock but would that be able to take the recoil of the 50?

A collapsing stock would definatly beat your shoulder to a pulp.  I would have to say that the UL50 would probably break a collapsing stock.  I have a regular A2 stock on mine and the scope is a bit high.  I'm going to use some long-hair fiberglass epoxy to build up a check rest.  I completly reshaped the stock on my Savage .223 with this method and it turned out great.

ACE stock with Leupold PRW HIGH mounts. Mine works fine.