Skoda Octavia MK2 boost gauge

[tomtomh5]

Been thinking about fitting a boost gauge to my Octavia after i've recently had it remapped.
I was thinking about the gauge being in one of the heater vents, but can't find one on the internet, but there's plenty for the Mk1 Octavia etc.
Any suggestions?
Or any other suggestions as to where's best to put it?

Also does anyone know a "safe" pressure for it to be running at? Its still the standard turbo.

Thanks in advanced