newbie for 1000A 120/240V 1PH residential service build

[aes92000]

Afternoon All,
i visit and read many helpful items but my first time posting.
I apologize if this may be in wrong forum secton.
if it is, please redirect me of the correct section so i dont waste anyones time.

i am a master electrician in houston, texas and have done many 400-600A services.
this 1000A is getting me a little stressed since the CPE standard book is just giving me what is needed but not a diagram
it calls for a bussed ct can for feeders and i have not done anything like this. (other than tap boxes for multi tentant)
i have googled, yahooed and forum several times with some very helpful reads and pictures but i am afraid to go off of anything on the web simply because it is not my service or how i thought it would be built.
that may be my fault for thinking i know how it should be built.
i reached out to the utility engineer with the response of "it is in the standards".

estimated calculated load @ 889A (all aluminum feeders for service build)
i plan on 3 sets of 600MCM XHHW with 3" pvc underground to pad xfrmr for feeders into ct can about 250 feet
1000A fused disco into service gutter for several 4/0 AL load taps (200A MB discos and 4/0 Al ser cables out to load centers)
250CMC GEC and 2 - 3/4x10 rods


if anyone can give some guidance, i would so very much appreciate it or where i may be able to get more information to help me.
i just want the grey hair to stop growing. LOL

 

[hmspe]

There should not be much difference in the basic design of a 1000 amp service or a 600 amp service other than having the equipment rated for the higher amperage and fault current. Milbank and Erickson make CT cabinets for 1000 amps. If you contact a vendor they should have CPE's requirements and they should be able to help you select equipment.