Humm...
S&S does not support (officially) this lens, so you are on your own territory.
S&S also does not support the Nikkor 24-85, Sigma 10-20 or 8mm, but I use them anyway, with zoom access.
With the 24-84 I was lucky that my old Hugyfot zoom ring fits perfectly on my S&S housings... (maybe all Hugyfot zoom rings fits S&S housings???)
With the Sigma 10-20 for Nikon housings (S&S support them only for Canons as of now) we found here in Brazil some rubber gears for sewing machines that fit perfectly
As for the 8mm I had to buy an extra pair of plastic fisheye dome shades and cut them off for the perfect circular image, whenever I use this lens I have to unscrew the normal shades and screw in the cut shades.
Also for use of the Kenko Pro300 3x teleconverter I had to sand off some of the frontal "horns" of the base that attaches to the D50 body...
These unnoficial customizations are called "Gambiarras" here in Brazil, we do that so much that me and some friends are almost openning a firm called GambiCorp.
Gambiarra is a GREAT part of UWPhoto from its first days 150 years ago! You gotta get used to it.
Anyway... once you own and use the 18-55, why do you want to go UW with the 17-55??? You will have to do some gambiarra. And if you plan to use them with the dome, the 18-55 is much better (min. focus of 0.28m throughout the entire focal range, versus 0.36m at 35mm focal length for the 17-55).
Do you know the math for zoom DX lenses behind flat ports?
18mm DX x 1.5 = 27mm
27mm x 1.33 = 34mm behind a flat port
You already shoot with a domed 12-24 if you are thinking to improve your WA I humbly think you should try it with a Nikkor 10.5mm.
If you are trying to improve your macro, the money invested in the 17-55 would be better spent in a micro lens 60mm or 105mm (better in my opinion).
Since you have the 18-55