Just uploaded a lot of profiles on Rig Exchange of the famous Marshall Major head, alone and in combination with the BSM Studio 75 treble booster and the Mesa VTwin tube preamp pedal. Best used with a Strat, to get close to Ritchie Blackmore's sound! Best sound (IMHO) = "Major BSM S75 2".
Also uploaded a bunch of the Marshall Vintage Modern VM2266C combo. Again, with and without the BSM Studio 75 treble booster and the Mesa VTwin tube preamp pedal. Best used with a humbucker-type guitar. Best sound (IMHO) = "VM2266C 15" and "VM2266C 29 DynRng".
All these profiles were taken as Direct Amp profiles, tapping off the sound with a speaker DI. So the cabinet parameters are not set. I use the Kemper with a Marshall 1960 Vintage 4x12" speaker cabinet.
Hope you enjoy!