There was also an exhibition in 2010 in Japan (National Museum) on the Hosokawa treasures. Probably the same exhibition then... There was a catalog.
I have been to the Eisei Bunko a few months ago as there was a special exhibition on tosogu (no catalog...). in the regular exhibition there were 3 suits I believe (no pictures allowed, sorry). Very nice. If you can, I would certainly go, but be aware there is maybe not much on display, all depend on the timing. The house is however very nice as you step in a time travel machine a bit.