I am. Or will be. I have done this on a VRod airride. Sealing the swingarm and using that as my airtank. I also sealed the swingarm on vrod dragbike and use that air for my shifter because I already have a nitrous bottle to deal with on that bike.
On the touring models, the front section of the swingarm looks to be easy enough to seal off and get some fitting mounted on it. And it also looks to be able to have enough area to hold enough volume of air to inflate both the front and rear system instantaniously with one button/compressor.
Thanks DA ive seen that video. It's kinda what got me thinking about a tank. I'm wanting to make one that will fit in the extended part of the bag maybe on both sides. I love how quick that bike is up and down