DIY tire repair can mostly be accomplished with a simple plug and some compressed air.
With out even dismounting the wheel from the axle.....
I carry both.
Not the best solution, but neither is a split rim.
I had a very good childhood friend permanently disabled by a split rim. He knows it is daylight, just not always sure which day.
Good luck with whatever is your choice.
Jeff & Cindy
'09 27FB Flying Cloud
'91 350 LE MH