Once nitro is in your blood its very difficult to get it out, i started with nitro and it has and always will be in my blood! there is just something about nitro! the sound! the smell! the sheer presence of them in the air that just gives a nitro bird more character and soul. Love it!!
Your questions:
Sullivan starter: As above, Not even a doubt.. Get it!! It will be one of the best investments you make.
OWB start shaft? I use the a Robbe OWb starter wand with my Dynatron, works like a champ!
Switch Glo? I use a Gryphon Tiny-Booster - Comes with push ignition or able to be controlled via Tx switch.
Fuel not sure?: I've used 30% for years but i found 20% to be smoother and easier to tune than 30%, and with the OS105 it runs better for me personally.
Futaba throttle servo?: As Above, try to match the speed of the throttle servo as close as possible to the cyclic, or even slightly faster if you can.
Flight pack?: As above, choose a pack as needed for balance.
Flight pack switch?: I prefer to keep it as simple as possible but i also like to add a bit of safety aswell, on my N7 i run the Scott Gray Reactor HVx with a 3S lipo powering the setup. I have got for my other N7 a JR E-Switch which has a Deans type HD power input cable to connect to the battery and two power input leads into the FBL system/Rx. Part number for the switch is: (JRP0450).
Hope this helps,
Cheers,
Ross