Thanks all. Waiting for a hot sunny day....
John

My bus number (if any): RM108

Back to applying vinyl for anyone who wants to do it themselves.

I always use tack reducer, it temporarily delays the adhesive on the vinyl allowing graphic repositioning & a bubble free application.
I also recommend checking out youtube as there are some great tutorials on there.

I am no professional but i have used vinyl on a manner of classic vehicles to give dashboards wood effect, or temporary cheap chrome on bumbers (using heat to stretch and shrink vinyl around curve - that takes practice).
I have also applied large sheets to walls and windows which is easier then curve but a second pair of hands is vital I think.

Below is my preferred product but others are available.
https://www.grizzlybearonline.co.uk/vinyl-application-fluid/1-rapid-tack-pro-spray.html

From memory we used to apply vinyls to new coaches using just soap and water it gives you a bit of leeway to reposition before you squeegee out the water from behind

My bus number (if any): RML 2747

We took vinyl off many buses over the years returning from hires etc and for large areas the most effective and least likely way to get them off without stripping the paint is a wall paer steamer.

Depending on how well primed the paint was and how long it was on before the vinyl went on your are probably going to do some damage unless you are very, very careful. Steam is the best and then do small sections.