As I understand your post, you are right handed and cross eye dominant. If you don't want to transition to LH.

Mount the RDO (Holosun or whatever you prefer) as normal. Shoot using target focus and impose the dot/circle-dot on the target with both eyes open. Practice this at various yardages and trust your brain to figure it out. It will take some time if you are a one eye shooter, but I think you will see satisfactory results if you stick with it and practice.

I do not believe an offset RDO mount is the solution, unless you want to have a LPVO scope mounted on top.