Bill, to purchase a Player HQ, you need to complete the BelGi missions then it is added to some of the shipyards and you can purchase it. Or of course you can use a cheat script to add it to the bases, there is on listed in the mods & scripts form on Xuniverse, I have not tried too many scripts but it looks easy enough to do.
As far as storing surplus wares, your best bet would be to build a trading station, and adjust the parameters, you can blacklist specific races from trading so just ban everyone but your own race and you should have the whole thing to your self, then just make sure you set your prices well abouve market so no one from your race will buy your stockpile. You should be able to lower your price back down for trading any time you wish. I have not tried it yet in Terran Conflict, but if I recall correctly I used to do a Freight Exchange with my station to get my wares on and off my ships, rather than selling the goods to my self, give that a try.
Thanks Mike.
Good to know. So one does exist. :d
Bill