R34 Nav Conversion To Triple Gauge

[stancewillmakeherdance]

I have an r34 gtt coming and I bought one with the ugly nav units.

Lots of posts about this I know so i'm sorry, but none that really focus on the triple gauge conversion. ( if there is point me that way)

Does the gauge housing just fit the entire hole that the removal of the tv unit will leave, and what sizes are those gauges that come stock. thinking of just wiring aftermarket gauges into the 3 spots.

Any step by step process or tips will help.

also going to but a single din in the stock radio spot, will a flip up deck work there with ease? (without having to get a new climate control and all that fun stuff)