Sales Support needed

I am thinking about pre-ordering one of these, but can't find any phone number to call and discuss with someone.

Could someone from gMax PM me their phone # so I can have a quick call with myself and my boss.
I was also looking for contact info to ask presages questions, such as:
-1- if we go with a .5mm nozzle at purchase, will the .35mm nozzles be available as an upgrade later and/or is this something we can purchase elsewhere that is universally compatible?
-2- what is he current projected ship time of pre-orders based on the current queue? I.e. If we order now, should we expect it within 3 days? 90 days? Size and price points obviously important, but a mater of how soon we can be printing is actually more important to us at the moment.