insulation

Have 8-10 batts r-13 insulation from a package I used several batts from. Currently sitting in the bed of my El Camino in the garage. Located in zip 20904, Silver Spring, MD. Respond here or PM.

Lowes & Home Depot used to stock a package of multiple sheets of 3/4 in. Polystyrene Foam Insulation Board that was ideal for under tanks on home build racks. I'm striking out on finding this product locally except from Univfoam that requires a minimum $250 order. Anyone have a source?

Anyone know if this will leach toxins if submerged long term? Specifically the product is Foamular 250 extruded polystyrene (XPS). Thanks