Originally Posted by Ola_H
... I started writing on an answer two times, but had to think a bit. So, here goes a third try...
Yep, exactly (with a bit more verbosity!):
Kode 80 or 86
It all depends on how much 3.7 you see ... if it is a few days/year go 74/86/98. You could also add a cheap sub-70 board for the nuclear days, and a sub-70 is relatively easy to find for less then $500/600