wich MARK III (short or long) fits in Rackmount

[webstersp]

I'm looking to buy a mark II head, sold my mark IV to get an Orange RV 50. Just sold my RV 50 and want to get
back to the MARK sound. I do not need the versatility of the mark IV and there was too many knobs for me

I saw that mesa mark III could be rackmounted witha rackmount kit.
Wich head the small or the long one fit in rackmount?

 

[JD]

Short Head

 

[MrMarkIII]

The chassis that's 17 inches wide fits in the rack adapter.
If there's two people, and one wears a 32 inch belt, and the other a 44 inch belt, which one is "shorter"? Rant over. :lol: