Good to have you on the forums Sam. You can probably find everything you need in the forums, but judging by the mix and match array of parts you have, I guess you'll be asking plenty of questions. I have a '77 550F myself, but there's plenty of owners with 750's here too.
I'm in Dallas too, well Forney really. Gregwaits is out in Rowlett, he has a 750 and a trombone strapped to his back when he rides. Don't know if he's attemped playing it while riding yet. Anyway, welcome to the forums.