I got some Yamato valkyrie stands in the mail from HLJ. It comes with various attachments so you can display your 1/60 or 1/48 scale valkyries in all three modes. Most of the new Yamato valkyries can be used with this stand. It retails for 3,900 yen, which is about $50, but you can frequently find this on sale at HLJ from time to time for 2340 yen - about $30, which is what I paid for mine. They're incredibly sturdy (I dropped the stand with my VF-1S Roy Focker while I was attempting to take photos for this review, and not a scratch.) There's significant weight to the base, and there are screws where you can tighten the various articulation points. All in all, a great stand and a must have for your valkyrie collection. I recommend you own at least one. With the newer valkyries getting bigger and heavier, this stand will be one of the best you can get. At $50, it might be too pricey, but at $30, it's worth it.
Fighter mode:
Gerwalk mode:
Battroid mode:
An example of the type of attachment it comes with: