Don't know about marketed, but there was at least 1 UK company providing single lift up rear doors for RRCs. However, like my old EH wagon, the twin system provides extra room to sit, have a cuppa etc. Wouldn't be without it and have wished the early discos came with that option too.
D4 MY16 TDV6 - Cambo towing magic, Traxide Batteries, X Lifter, GAP ID Tool, Snorkel, Mitch Hitch, Clearview Mirrors, F&R Dashcams, CB
RRC MY95 LSE Vogue Softdash "Bessie" with MY99 TD5 and 4HP24 transplants
SADLY SOLD MY04 D2a TD5 auto and MY10 D4 2.7 both with lots of goodies
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