I will steal and use Ben's scissor-jack front rest idea most ricky-tick. The ingenuity shown by the members here is one of the site's best features.
Ah, the Rem 788. Big Green has REALLY blown up the 700 bolt rifle line with niche-chasing and nonsense. My thoughts? Remington would be well-served to shrink their bolter offerings to the 788 and the 700 Classic series, with a heavy-barrel option for the 700 in some calibers. The permutations of the 700 Varmint are some of the most accurate bolt rifles ever mass-produced, and the standard-barreled 788s are a very close second place. I'm partial to controlled round feeding a la Mausers and Winchester M70s, but I will put up with push-feeds that shoot well.
788s have shot wonderfully for me. 2 in 22-250 and another in 243 have been GREAT. The present 22-250 got re-tubed with a Pac-Nor 1-12" twist in a bit heavier contour than the OEM barrel had, bit not quite a truck-axle either. It is a tack-driver.