Dear Rabbis, Can I as a non-Roman Catholic Christian that supports the rights of Israel and believes the Noahide laws and Mosaic Laws are the command of G-d be recognised as a "Ger Toshav" and if yes is there any process for formal recognition? Thank you.

If you do not act as a missionary in any way, you have the title of a Ger Toshav. I advise you join the Bnei Noach organization of Rabbi Yoel Schwartz. Rabbi Yosef Weitzen