You would need an aftermarket for a RC. The OEM roof opens into the roof panel and a RC has no room.
Do a google search for Webasto and see if there's a distributor or installer in your area. If pay a shop to do the work expect to pay well north of $1000.
my SSS opens up and out over the roof.
96 c1500, stock suspension, stock bottom end, 93 octane, street radial- 1.60 11.5 at 115- on the small stage-sold
05 SSS 2wd 228/230/80e/fti4k/5,5drop/215shot-sold
90 350ss... beast build