Engine looks good, it'll be interesting to hear how it eventually runs.
Are you going to run it on dyno to setup ? As torque and power charts will be good to see.
They do have a distinct sound to them, these 750 motor in mechanical terms. A big bore race one was started and run a while back at DS open day that sounded potent. Can't remember what he said as output though.
Was a CR present but they couldn't start it, ignition pack fault as I recall.