I see what you mean now - i was shattered last night after playing with soundproofing etc in the Volvo for mush of the day so the brain cell wasn't even firing on one cylinder!
I've only need to contact RA once about a product and that was for clarification on the polarity. Within hours i had an acknowledgement stating the manufacturer would be in touch shortly and within seconds the manufacturer sent me a drawing clarifying the situation.
Looking up the M/C you've got there, it cross references as fitting yours :
https://www.ebay.com/itm/Clutch-Master- ... 3282864161
My guess is the hose from the reservoir goes on the hose barb on the nose of the cylinder and the hydraulic pipe (with a bit of adjustment) goes into the open port and then onto the clutch damper..
https://www.ebay.co.uk/b/Clutch-Master- ... _AND_TRUCK
Ebay.com search results for master cylinders that fit ^^^^^ Also checked a Honda parts website i use, it shows the original design M/C as well :
It's a long time since i saw a clutch on an 800 but if memory serves the pipe from the M/C to the damper is a coil of pipe with unions on the end, rather than the simple curved pipe shown in the diagram above. If so it should be easy enough to manipulate it to fit the new master. Looking here, there and everywhere shows what you've got there as an accepted alternative design.