FCC website
"Bit of a minefield" . . . how about incomprehensible. Seriously.
Called their help # which is 800 CALL FCC which of course can't be dialed from outside of the US, but spoke with a helpful young lady named Lucy.
1st step is get an FRN - "Federal Reference Number" so they know who they are talking to. This comes from "wireless.fcc.gov", no www or http first.
Once you are "awarded" an FRN, you continue to the page that lets you select the license you want - you want "RR" or Restricted Radiotelephone.
Fill in the blanks, pay by credit card, it was $60 for life, not $75 for 10 years (I stand corrected) - and doing it on the web is 10,000% easier and faster than printing out form 605C, 160, and 159 and blah blah blah.
Much easier than it first seemed, and now I'm set for life. (at least for this)
Best Regards,
Echo Mike