Body to chassis spacers?

[Duncan Grimmond]

Personally I would avoid Denso tape as it will be difficult to remove the body later should you need to. Originally designed to protect pipe work underground it does remain flexible but that really gluey stuff bonds well and may distort a thin floor when trying to remove the body from a chassis leg.
I have used neoprene foam self adhesive strip stuck to the chassis and it seems to reject water ingress and allows removal.