definately put the vinyls on first!!!!
if you have no space, apply them outside your unit on the ground if you have to.
buy in some “GOOD” knee pads and get lettering.. a good pair will only cost you about £12 and you have them for years.. the best thing to invest in is skateboard kneepads.. they come complete with shin protection also. sounds daft i know but trust me.. you will never need to do it again.
i have to stress my point on the boards with any demo i do…
“do all you can in the workshop, regardless the job. save time and money on site” 😉