Hello from Nor Cal

[19Suburban69]

A few months ago I purchased ‘69 C20 Suburban for member here, ranger danger. Found thread on gas struts for barn doors and just put them on. Couldn’t believe how simple and quick that went. Installed stock front bumper to replace fiberglass roll pan. Now I’m trying to replace rear step bumper with stock bumper. Need help in purchasing filler panel that goes behind bumper. Step bumper has lip that goes up to bottom of doors. Also need info on what late model rear seat fits up on ledge. With seat installed on flat floor there’s no leg room. If I need to post this in other areas, please let me know.