I'll certainly be looking forwards to seeing the model in the cardboard, so to speak.
Not only an unusual, but rare subject, and not one I recall seeing modelled before.
I know a couple of versions of the Me. P 1101 exist, along with several of the Ta.183, but yours is the first Me. P1106R I have seen.
You are more than welcome regarding the roundels info. After all, this forum is very much about helping our brethren here when we are able to, and I am glad to have helped.
Kind and Respectful Regards Eric_Son my friend, Uyraell.