i use a pelican case.
i have replaced the passenger seat in suzi w/stowage. case attached w/rubber bungiees.
i use the seatbelt in my other car to keep it from slipping off the passenger seat when i use it that way.

[Linked Image]

'94 "tracker", with some parts from suzi the psychic.
other modifications made, with more to come.
some intentional.
suzitoo should get me fishing.
kj6esv