bacardi walla,
I've entered the US through MSP before and never needed a "landing permit".
TSA Clearance when not in an N reg aircraft, yes. eAPIS filed, yes. Telephone call to local CBP officer to advise of our arrival, yes (also good to check with them where they'd like us to park on arrival - always take their badge number as a reference).
The only thing I can think of which you don't seem to have mentioned and can get you a potential fine for is if you didn't have a 'transponder' decal for your aircraft? (
https://dtops.cbp.dhs.gov ) But even then, you can normally pay for it on arrival.