The "stubby" components for your 26 style torch will allow you to fit 9/20 style cups on it, which only stick out about half as far as the 17/18/26 style cups do. So, you'll be able to get your torch into tighter places.
Typically, to make it work, you'll need to get a special stubby collet, a special stubby collet body, and you'll also need a special stubby-style teflon insulator if you are going with the stubby gas lens style collet body. Then you can use 9/20 style cups (should be regular or gas lens to match your stubby collet body) to make it all work.
CKWorldwide refers to their stubby components for 17/18/26 style torches as their "4-series"
http://www.ckworldwide.com/4series.pdf
Weldcraft is another manufacturer that makes stubby torch components, like CK does.
I really like the stubby gas lens setup. Be aware that the stubby components aren't rated to take quite as much heat (amps) as the full length versions.
There are also stubby front end parts for 9/20 series torches that allow mounting a 24 style cup onto the 9/20 style torch body.
Gas lens type setups straighten the shielding gas flow coming out of the TIG torch, similar to how the screens in a sink faucet straighten water flow coming out of the faucet. This allows one or more of: better shielding, lower gas usage, and more tungsten stickout.