ARP was using 1v/8va scaling from square one, so I don't see pitch CVs being a problem here. The gate/triggers did like a heavier hit at somewhere around +10V, but again, I don't see that as being problematic. Plus, if Uli really followed the original docs, you're likely to have a trimpot that can lower that threshold, or you can add something like https://www.modulargrid.net/e/emw-voltage-source in there to impose a suitable offset voltage that'll work.
Eurorack: there's ALWAYS a fix in there, somewhere!