Hi alex, welcome here. I really envy you for your candy cabs, the row looks awesome.
As you might have read here I'm also building a gameroom at the moment (although, not a lot of progress has been made the last few months due to personal reasons), and I do plan a nice place for my 3 candy cabs, Pachinko and Pachislo in it. Unfortunately I don't have the means or space to built two separate rooms in the shed, but that would be the ultimate achievable, a real classic gameroom with classic cabs, one or two pinballs and a footy table, and a stylish Japanese gameroom with all the Eastern decorum. Well, you never know what the future brings.
And yes, you should get at least one classic cab, I'm sure you will love it.