I don't think a Wave sail would work well. I think the loose foot of the Wave sail and differing foot lengths (Wave vs. H16) would create some funky sheeting angles. IMHO the ideal solution would be a H14 sail on a H16 boom. That solves downhaul/outhaul/sheeting angle problems. The stock halyard could be extended with a wire rope pigtail.

Somebody has to have done this before. Maybe a shout out on the Open Forum board is in order?