Been doing some research; the armor encyclopedia has 30 pages of armors (29 full) of 30 armors per page = 870 armors (but we know that there are way more armors that don't have their own individual threads (yet?) that are in the encyclopedia info submission, and some not even in there either). Let's extremely low ball and round up to 900; most (but not all) armors have a z-token variant so let's generously ÷2= 450. We'll round down to 400 because some armors have different names for a some if not all level variants; and to also compensate for that lack of knowledge of how many armors arent in the main part of the encyclopedia.
In approximately 400 armors (rounding up for each (i.e: if [0<#<5], then 5; if [5<#<10], then 10; if [10<#<15], then 15; etc.), just in case I missed any:
Approximately 30- Have debatably decent MRM for a rogue playstyle
Approximately 10- Are rogue/ninja/assassin themed/looking
This is very disappointing.