In a nut shell?
I have my boafeng HT, but I'm thinking of an FT8800 or 8900 or even an Alinco to go in the new Jeep. Being able to cross band transmit from my HT to the Jeep and connect to further repeaters would really help make the nights pass by in dispatch.
I know you have to announce that you're using cross band every 10 minutes or something right?
I think I'd need only a one way repeat. So 70cm into 2m to reach the repeater.