I presume that you are running standard management and still have the metering head from the comment about changing the hoses?
I put my T34 on when it had cossie management on so all I had to do was swap the turbo over.
You can go with an rs turbo exhaust housing and it'll go straight on to the turbo and exhaust without any mods but the turbo I bought had a cossie .63 housing on it so SCC made a custom downpipe for it to mate to the exhaust.
If you do go for the T34 , go for the cossie .63 housing
Worth it for the future
Couple of pics for you Andy to tease you
Cheers
Dave