Installing the CR face on a Lightning isn't to terrible. The fuse box location on a Firebolt makes wiring rough since there not much space behind the headlight.How hard was it to put the cr face on?
On either bike you will also have to figure out what to do with the ignition switch and gauge mounting. In my case I experimented with and created a new gauge setup. I also use a Motogadget keyless ignition. You can read about the build up HERE!