Hi!
Whats wrong with your shocks?
If they just lack oil, you can fix them!
Now probably many ppl disagree, but you CAN refill the shocks!
(If the sealings are somewhat ok)
I have "fixed" many of my Subaru air-shocks in this way, here they cost around 500 Euro each!! .
I just drill a hole and empy the "dishwater" from them, and replace with a high grade "shock" oil.
Then thread the hole and put in a screw with sealant (or weld it! sometimes the best)
But you must do it on both left and right side, because they usually get much harder than the old setup