I got a HCH flywheel with the transmission that will be swapped into one of my Insights. Let me know what measurements you would like. I do not know if it has been surfaced in the past, so the thickness at the clutch disc surface may not be the same as a new one.
Silver 2006 MT #531, 202K miles : Genesis One GCO1 Charger, OBDIIC&C, MIMA 070 PnP, GAZ rear shocks, KLR3CYL rear springs and belly pan
Silver 2005 MT #107, 187K miles : OBDIIC&C, KLR3CYL belly pan. Still fixing small things.
Silver 2001 MT #683, 256K miles : Beater/test bed. Might sell it later.