Jager,
you can have the claw mounts made for the the old claw bases,several gunsmiths do them.L&L and NECG can do it.You can put both the older,I have a couple Hensoldts that work fine or newer ones.Not cheap,if you want cheap find another hobby !
I would not let the mounts get in the way of the buying that gun,as I said they are not cheap thou.Much more fun to shoot with a old classic then a Kimber(nothing against Kimber I have a CDPII has my carry gun now).

Hillary For Prison 2018