RB20 cams in Built RB25DET head? Greddy adj cam gears

[91300zxttkid]

I know this has been beatin to death however I dont really understand why The RB26 solid lifter cams can be used in the RB20 head witch are hydro lifters, But people say the rb26 cams wont work in the 25det head which is also hydro?

I have a Built bottom end RB25
-arp mains tuds
-ACL Main and rods
-Eagle rods
-CP 87mm pistons
-Cosworth headgasket
-ARP Headstuds
Head has
-Full port and polish job
-3angle valve job
-Supertech Single coil upgraded valvesprings
-Ti Retainers
-Rebuilt Hydro lifters
-GReddy Inake and Exhaust adjustable cam gears

-Useing Comp turbo t68 tbb, T4
-Full race replica (I am making) tubular equal length manifold
-Jun rep. intake manifold
-Powerhouse fuel rail and ID 1000cc injectors
Going in a full shaved slicktop conversion shaved bay Z32 300ZX
ect ect ect..

So I need cams and I am out of cash, I dont even have the stock nvcs cams anymore.

So To get my motor running can I use the RB20 or RB26 cams NON NVCS to bolt to my motor and just degree it with my greddy cam gears?
Anyone know what the rb25det BTDC and ATDC numbers are?

Any input or help in this area would help VERY VERY much
-George

Heres some bonus pics of my build
http://i40.photobucket.com/albums/e206/91300zxttkid/Pisteyysss.jpg
http://i40.photobucket.com/albums/e206/91300zxttkid/teasermani.jpg
http://i40.photobucket.com/albums/e206/91300zxttkid/partsonfloor.jpg
http://i40.photobucket.com/albums/e206/91300zxttkid/paintt.jpg
http://i40.photobucket.com/albums/e206/91300zxttkid/polydiff.jpg
Thanks!!!