building motor, but what turbo?

so here is the list of whats done to my truck

which is a 2003 cummins qcsb.



bottom end

stock crank, early 24v rods

Mahle .040 pistons. fully balanced bottom end and used arp bolts and studs for the whole bottom end

Head

airboss manifold

pusher intake

extreme duty push rods and springs (110#)

port matching all gasket for the manifold and some porting hopefully

stainless diesel t4 2nd gen manifold with stainless hardware

425 head studs



fuel

ats twin cp3 with arson kits in both lb7 pump and factory

getting 200hp+ injectors trying to get my hands on the flux 7.5s

airdog 200

sump kit for the tank



fully built 48re trans with billet shafts, input intermediate and rear(debating on a MVB), elocker in the front end. will have drive line loops and traction bars etc.



going to be getting a smarty touch and udc tunes aswell.



so my main question is, i want to pull 2.6 here in upstate ny(for fun and little competative), but i still want to daily drive the truck once in awhile and maybe tow 8000lbs atleast once a year(camper).

so what would be a gd turbo to run?



clipped s475/ 87/.90? i found a gd price on a 66/83/.90 but i feel i would need a bigger turbine like a 87?



i want to pull this coming yr and then go big once i get the motor dailed in. trade off the 2.6 turbo and go twins or a s467.7 and maybe hit 1000hp.

i just love pulling and have always wanted to pull 2.6. i pulled 2.5 last yr with my duramax but that is way to expensive to build.