Thanks man! The project doesn't go as fast as I want. But at least I try to do it well, once.
The engine bay was quite of work, but in the end I'm really happy with the result.
So here are some update.
I decided to get rid off the old fans. They take too much space between the rad and the turbo.
So I designed a fan Shroud and bought two new electric fans.
Here is the final design.
I work for a company that owns a CNC Plasma cutter, so... I asked the operator if he could put my shroud between two jobs, and said yes.

So I get it folded on the 15 tons press. I like the result.
After some research, I opted for two Spal low profil 10" fans, 800 CFM each. These are the best bang for the buck I found. The price is good and so is the quality. One of my friend had them installed on his S30Z and he really like them. I you want to order similar fans, order the curved blades, they are a bit less efficient then the straight, but are much quitter.
And the test fit.
Since I started to clean up my wiring harness, I ordered the connectors from Wiring Specialties guys, great service btw.
So I replaced all the worn out connector.
Also redone the positive and ground wiring on the battery.
New silicone vacuum hose, couple and T-bolt clamp. Cain't wait to install them.
And finally, a Nistune ECU to tune the 450cc and the Z32 MAF when I will be ready to install them.
So that's pretty much the new addition to the project. I'm now replacing the worn gas line. I discovered last Saturday that I will need to replace the flexible gas hose between the pump and the hard line... So I have ti re-open the pump cover in the trunk for the 4th time...