Here is a really neat mosin project is stumbled across:
*Almost finished* Mosin nagant project - The FAL Files
This guy relocated the bolt handle, which allowed a better scope mounting solution.
Saw this, as well and have been thinking it has some possibilities:
2013 New Products | Archangel Manufacturing
It's another option, at least.
If I had some welding and machining skills, it would be a fun project to tackle. I don't, so I probably won't go there. But, I really enjoy seeing the creative things that people are doing with these homely old peasant's rifles.