In the interest of saving time let's just say we want to hop across a bit of Lake Erie (my home Lake) from KPCW (Port Clinton) to 3W2 (Put In Bay) which has no IFR approach. The Detroit sectional shows a couple towers in the 900'+ range, so add 1000' and round up to 2000' MSL for a MIA. It's only 7+ miles from the PCW NDB, so you could time from the NDB or use GPS if it's in the database. There's no SIAP, so no worry about being accused of accepting a clearance you're unequipped to fly. If there were, you might define a fix according to the AIM in terms of bearing and distance, or if 3W2 is not retrievable from the database. In the route block, "Direct". In the destination, "Put In Bay". In remarks, "Need a cruise clearance to 3W2 due to no SIAP." In cruising altitude, "3,000 ft." In alternate, "KPCW".
Your ball. If this won't work, how would you MAKE it work?
https://skyvector.com/?ll=41.54813317313482,-82.77532904280417&chart=430&zoom=3&fpl= KPCW undefined 3W2