your correct in saying there is not a flourescent wrapping film mate.
there are better grade flourescents available, but thats more the UV stability of the film .
i know Grafityp do a 2 year uv film and oracal RHG do same, but as i say, not for wrapping and cost more than most others on the market. keep in mind you MUST stipulate you want the longer life film or you will most likely be given the budget stuff.
wm smiths do 3M in a 2 year cast and a 3year polymeric but havent tried that..
there is a very limited colour range in flourscents too… based on the more budget range, grafityp have a descent selection of colours as does ritrama / wm smiths.
as i have said, none are for wrapping.
something you might want to consider if the customer will pay is to use sericol flourescent solvent ink and spray a good brand white wrap film. allow 4-5 days to out gas and then laminate with a wrapping laminate. just a thought, not saying it will work… but could.
that said, i woulder if a screen printer will flood coat a wrapping film with flourescent ink for you and do same!