Force HD add-ons for Force?

We're narrowing down on a Force 37BH - we don't *need* any of the extra bits of the Force HD, except the "Air Ride Cab Seats with Swivel Pedestals" sound really nice. Is it possible to buy those separately and mount them in the "regular" Force? Do all the mounting bits line up?

Or am I thinking about this all wrong, and I should just look at an aftermarket solution for adding air ride swivel seats to a Force? :)

Thanks!

-James