CA18ET - CA18DET help needed!

[Chrisgunn11]

Hi all, I've got an 87' Silvia with a CA18ET and I'm looking to put a DET in it!
I'm looking for some pointers on how to do it, Should I Buy a CA18DET lump to get in there or can the CA18ET be modified into a DET without too much trouble?
I've Got a new T25 to go in it and am looking to have an intercooler made for it by a friend so I'm part of the way there. Any advice would be appreciated