If price is your thing, then you can't rip faster than a second hand Impy (with Vision and I-frame).
Top end Impies, well looked after, can come with a multitude of goodies (LPRs. Freak Barrels, ACE etc), and have the supposed Gremlins (such as first shot drop off sorted), for a fraction of the cost of Inferior alternatives. Sure Standard Impies require some work to compete with other Gats but once tricked, can out perform almost all others (well the performance on mine was compatible to a Nexus).
Bearing in mind that SP is particularly unloved at the mo, they are the Bargain Gats of the decade. Look to pay around a monkey for Adrenalin's or sorted Eclipse examples.
On the downside they a tad heavy, but with that much mowing ability, who cares.
Of course you need to try as many out as possible, but forego bling for cost and your onto a winner. Either that or try a Viking, pretty much similar to a tricked Impy, but the goodies come as standard.
Mind you if t's an Eclipse LED you've got, keep it!!!