Just found a meaningful picture (not from me) of the Vitus Fork
I had once even the same, it has 390mm A-C length and was, if I'm recalling this right, noth as lightweight as I was hoping/expecting, maybe 950g?
Pricing-wise, this depends a lot on steerer and steerer length of your fork, I would say in general, this is a bit more exotic and nice as a regular rigid fork but also doesn't fit to each and every bike. Still maybe also worth more.
Technically a good Kinesis aluminum fork would be most likely better, at least more lightweight.