I just put the DiPricol gauge and isolator in my '01.
Used the Geno's kit - 18" line direct from the schrader on the VP44 to the isolator, made a bracket to fit under the brake master cyl, and then ran the gauge tubing through the firewall where the pedal for the clutch would be (hole & plug alerady there).
I put as much anti-freeze ("glycol") as I could reasonably get in the line and then mounted the gauge (temporarly) below the ash tray.
I'm wanting to do the FP/Boost/EGT in the A-Pillar soon... . just getting things set-up at this point.
Let me know if you have any questions on my install... . the gauge is steady - no bouncing at all - love it!
Dave