Macro Flash Holder for Nikon SB-R200 on Sigma 180 mm

Holder for macro flashes Nikon SB-R200 on lens Sigma 180mm f/2.8 DG HSM EX Macro mountable on its sunblade/bayonet hood attachment.
(the original Nikon holder SX-1 is only up to 77 mm and Sigma have 86 mm diameter)