Hey guys!
 
I have two questions for you:
 
1. To install my boost gauge, how do I go from the cab to the engine bay? (Easiest Way)
 
2. Where is the cheapest place to get the parts to do a tail light conversion?
 
Cheers!
 
~1991 MR2 Turbo

In response to Q1.  
Depending where you have mounted your boost gauge.  If installed on or near A pillar, I have found running the vac line under neath plastic door seal panel, past thru rear side mounted speaker, out thru existing firewall hole near intercooler.
 
If you had a electronic gauge (stepper motor) no running of lines what so ever.  
 
Q2.  Unable to help 

A) I put my hoses through the center console along side the shifter cables etc.  other option is to have it around through the side under the side steps etc.
 
B) I've got a few sets of second hand tail lights for sale. $300 with the mounting L-brackets, and $275 without. I have black, white, red and blue centre garnishes available.
 
Let me know if keen.