Clutching & gearing for sure...there's a chance that when that was extended, the gearing wasn't changed...where do you ride, flatland or mountains? Is this an x or adrenaline? 2"track or 2.25? Aside from the track, what does this sled have that's not stock?
After owning a set of float 2's I will say, that was the biggest waste if money! There was no single setting that worked well for both on and off trail...and I even had them re valved.
I would recommend factory kyb's. I agree with the can and seat, but with a seat being 1/2 your budget, I wouldn't recommend it for you. A 2.25" track it's a huge improvement as well. I would not see any reason to go back to a 144.
So, I would clutch & gear it, can, x shocks for sure. The rest would depend on your riding.
What's the millage on the sled as well? May wanna do a top end everything
So let us know those let things to better help you. I've got parts available to doo each and every thing listed too in both new and good used, do I can definitely get you a louth of bang for your buck!
My #'s in my signature if you wanna get ahold of me through phone or text
Lefty