Thanks and welcome to ASR!
These speakers are larger than we currently support for testing, but hopefully a current owner may provide. I think they would be an interesting addition to the ASR speaker database. Once the pandemic subsides, will see if they are back in stock and if nobody has already submitted, may reconsider.
Just FYI, the HT-8 assembled each would measure 16.75" H x 12.5" W x 7.5" D, which is 'bookshelf speaker' size. Perhaps that fits within your size window? Hopefully...
Thanks.