Hello Ethan,
I'm glad to provide some humor about the reloading system requirement.
On board the three ballistics missile submarines and one fast attack torpedoes were loaded with a hydraulic torpedo loading system and as a back-up could be loaded manually using block and tackle.TNE and T4 has a similar system in my opinion.
The hydraulic system has a ram that pushes the torpedo down the stowage rack that has a set of rollers and a removable extension to span between the end of the and the opened breech of the tube.
Of course I've not considered the use of gravitic/anti-grav technology in anything other than the maneuver drive, vehicle thrust-based suspensions and a grav belt.
I've run the Guardian through a new spreadsheet based "A MegaTraveller Starship Design Example" and discovered that a 100 ton bay requires a crew of 50 versus the CT requirement of 2 per bay.
Tom Rux