Ack, lost a larger post due to internet troubles, but anyway:
The MN state law is pretty clear here:
I attended the MN GOP convention as a seated alternate, and can confirm we did not nominate elector alternates. (Strange that I didn't catch that, as I definitely read this section of MN law before the convention, as I was advocating using this section of the law to submit someone other than Trump as the "party candidate for president.")
The law requires that the convention nominate elector alternates, and it is too late to hold a convention now (the Call to Convention must be sent out at least 5 days in advance), and you can't change the Constitution (except in the particular areas, e.g. delegate selection, where we have delegated changes to particular committees) without a convention.
It's too late now; Trump should not appear on the MN ballot. As an MN GOP alternate, I'm an aggrieved party, and if I still had standing (i.e. if I still lived in MN) I'd sue.
Could Trump get on there as part of an ad hoc minor political party, like "Minnesotans for Trump" or something like that?
Too late, minor parties were due this monday.