You can try these guys, but I don't think they deliver.
www.jph.mu/
They're the folks who store all the skis used for the Mauritius Ocean Classic, so they definitely have the skis... I'm just not so sure of the availability for rental.
Rob
Currently Fenn Swordfish S, Epic V10 Double.
Previously: Think Evo II, Carbonology Zest, Fenn Swordfish, Epic V10, Fenn Elite, Red7 Surf70 Pro, Epic V10 Sport, Genius Blu, Kayak Centre Zeplin, Fenn Mako6, Custom Kayaks ICON, Brian's Kayaks Molokai, Brian's Kayaks Wedge and several others...