I have a partial answer for you hope this helps. I replaced my mats about 8 years ago with a thick vinyl mat 2 piece set, however I cant remember where I bought them. I personally do not like the thicker mat ( like 1/8 thick) its difficult to work with and very stiff if I had to do over I would find a better thinner mat. While the mat is out is a great time to address the front floor kick panel area which is prone to rust!! What model of 3+3 do you have?