Currently 5GP = 300 ctp. (on going rate)
So price for 10 artifact warehouses (160 GP) = 9600 ctp
But I will take only 7800 ctp for all warehouses.
And 780 ctp for each warehouses.

CTP is yours so decision is yours. cheers.

EDITED

1. Artifact warehouses are 16gp not 18.

2. 5gp=300 ctp is the going rate for abandons or other deals that involve legion changes etc at the very top end you are looking at 50.1 ctp/gp ratio

Ya, I find 50:1 is pretty standard and I have 100's of storage sales to back that

Edited

Lol, dude I have no idea where you are getting your prices but it is so off I had to laugh when I seen it. So you know there is no direct correlation between GP and CTP as a res and min storage sells for 700 max market value (1 GP = 43.75 CTP) and artifact warehouses run 750 max market value (1 GP = 46.875 CTP) whil a planet flux runs 1,600 max market value (1 GP = 40 CTP).

I will be noting this down for everyone in its own thing so that this misinformation that even I thought was true as a noob stops getting passed around.

NOTE: This is the markets current max market value as of 4/1/2014

check QSE and RT's present value including abandon cost

Sure dude, I would have to look into it and see if it is common trade like storage or if it is elusive like XTS-9. Also see what people normally charge for it. I normally do not see them for sell and have not got into trading those yet so did very little research on that specific set of artifact. Sorry I can not be of any help with your question as of now though.

Edited out as that was to be a PM.