I have a full wide-angle set (minus strobes) for sale!
Nikon D750 (with 3 batteries, 2 64GB SDCards) (new: $2000+, willing to sell for $1000)
Nikon 16-35mm lens (with Nauticam zoom gear) (new: $1100, willing to sell for $700)
Sigma 15mm fisheye lens (new: $600, willing to sell for $400)
Nauticam NA-D750 housing (with vacuum system, 5pin strobe cable port, lanyard) (new: $3800, willing to sell for $2200)
Nauticam 8.5" acrylic dome (new: $600, willing to sell for $300)
Everything in great working condition, I just find myself not using it enough.
If you want the full set I'll part with it for USD4200 - roughly 50% off. It shoots VERY acceptable images
PM me for questions.