Quick question,

"P" clips for brake lines, can I use the plastic ones or do they have to me the metal ones with rubber coating???

I use the plastic ones without problem for the SVA

you can also use cable tie bases and cable ties.

i used oversized plastic ones and lined them with a split old fuel line to protect the copper, if you're talking about copper lines though, otherwise plastic ones are fine.

Did same for brake lines.

IN used the stanless ones with the rubber shield.

However I have also used cut up cycle innertube as a filler / flexible spacer (not on this build, but on my Land Rover.

Use proper plastic push in brake pipe clips --- P clips don't look professional.

I don't understand your comment, nothing un professional about a proper p clip like pictured below, they are 100 times better than any plastic clip! They are used in the aviation industry for all pipes and wiring looms for a reason!!

Yep also want to know whats unprofessional about p clips. And i think you have to have p clips for brake and fuel but can have cable tie bases and cable ties for wiring only. Thats what i was told anyway.