If the stock is one of those flexible synthetic jobs, prone shooting with a bipod is going to be difficult. It'll flex and the stock will hit the barrel every shot ruining accuracy. You see used stocks with some regularity, so I'd recommend switching to something rigid like an HS as soon as you can swing it.

If you're truly planning to shoot long range you will want a canted scope base. 20MOA is very common. Then just mount your sope in any decent rings.

Harris is the go-to bipod for value.