A fully accessorized 98% H&K 91A2 at $2,300 is a decent deal.
Justify the expense this way. A 98% H&K 91A2 w/one steel factory mag should be priced right around $1,850-$2,000. Now if it has a factory claw scope mount, you'd add another $350 (add $225 for an ARMS, or $60 for a B-Square). The scope, depending on what it is (Simmons vs Leupold) could be another $150 to $750. Magazines, depending on whether they're steel, aluminum, or alloy, and whether they're factory H&K, NATO contract, or aftermarket, will run anywhere from $25 to $65 each. If you add a factory H&K bi-pod, add $125. A factory H&K bayonet, add $110. A factory canvas sling, add $50. A manual, add $15.
Given a choice between your two items. I'd be all over the H&K. It will out shoot the shooter in most cases, given it is rested with excellent optics and match ammo. But moreover, it is versatile. You can hunt big game, varmints, targets, and the enemy. It is easy to maintain, accurate as hell, and can be equipped with many, many additional goodies, like PSG-1 items.