Good points Neil....You seem to have talked yourself into it.
It's your truck after all,if you're happy,then go for it.
I was also planning to 'flood' mine and other sections with
this stuff.
I've used it for years on many of my projects.
It's a bit smelly on initial application but that soon goes.
Plus i'm not sure,but I don't think your roads get salted in winter do they?
I think
my cab corners will outlast me!