It can be done I have converted CAT 1 to CAT 0. Only thing is you may loose some lift height when going to CAT 0 depending on attachment and how you make the CAT 0 frame work. Another option is to get the CAT 1 hitch arms from Ruegg for your 430.
Having it do double duty is a good plan. Gives it more versatility.Thank you for the quick replies. I was going to leave the CAT 1 hitch points as they are and add CAT 0 hitch points below them. That way I could use it on my 2032R or my 430. with the 2032R I can relieve the 430 of mowing duties and make the 430 a dedicated garden tractor.