Ordered my 750 X-Carve on 20-Dec last year and just got confirmation that the hardware (excluding the x-controller and spindle mount) has shipped so its seems normal lead-times are between 6-8 weeks still.
When I ordered mine somewhere around the start of November ( I believe? ) they pretty much immediately informed me about parts like the X-Controller, Probe and Clamps being on back order and supposedly shipping like 2 weeks later. The last part, the X-Controller, arrived during the first week of January so while they were pretty much upfront about parts arriving later the date it actually did was slightly amiss ;}
But hey… Waiting for it gave me enough time to learn more about Fusion 360 which probably occupied most of my mental resources in this new Project - Something I’d still highly recommend using.
Things I can recommend so far:
A 0.5mm shim between the ACME Delrin Nut and the Spindle Mount
I think the 6-8 weeks is doubtful. Initially they told me 6-8 weeks, then 10-11. Now today they said it will likely be pushed back another week. At the earliest. Not to impressed with them as a company so far. If I had not already sunk $300+ into my enclosure I would be canceling my order at this point.