For years, I strapped a Z drag kit on the rear frame member of my 16 foot NRS cat. Upside down access seemed important, as I ran a lot of solo trips...
I also rowed and motored a 20 foot Jacks El Tiger Grande. Never flipped it, but because it was so big -- and always heavily loaded -- I kept a heavy duty rope-based come along in a box strapped to the rear of the frame, where it could be accessed if upside down. I did use it to good effect once, to reflip a very heavily loaded 18 foot NRS SB on the Grand.
Sorry I don't recall the brand, but it was quick to rig and very effective.