There are two options that are about the same cost but will gain different results. The first is obvious. Flex out your suspension and measure the fully extended and fully collapsed points of the rear shock tabs, then give that info to your shock monger and he should be able to get you the shocks you need that will not bottom out and break something. The other option is if you paid good money for your current shocks and want to avoid spending money on them again.
Teraflex makes this rear shock bar that's designed to maximize travel in tight spaces. There are three adjustments on it for different travel shocks. I'm sure one would work with your current shocks. On the teraflex website, it's selling for $25 and for another $25 you pick up the adapters for the bottoms to change the direction of the shock. It's cheaper than a new set and is a viable option for some.