I agree with Dan in that Ranchos seem to be the top choice outside of OEM.

I'm running 9000XLs which are adjustable.

I'd put the RS5000s on and see if you like them.

You can get OEMs rebuilt for about $900 and there is a set of ones that need rebuilt on eBay for $250 right now...kinda pricey but OEM is a great ride (read as stiff as can be and handles great) if you care to go that route.