Hi.
Have U checked any of these sites? There is no current information about orion bms offer some even don't receive calls and emails :/
It seems that list isn't up to date
Ah. I guess that's what I get for assuming the manufacturer would care enough about selling their products to keep their site up to date.
In that case, the best thing I can recommend is asking the manufacturer themselves, and if they don't care enough to say, then you might have to look for someone selling a used system.