or a stove gasket...
Kevin, Where ya from? Add your location to your profile, or everyone will keep asking you. It also matters as to what's available and not available.
I just prop my firepan up on some old paver block/ bricks, but my pan is quite a bit higher than it was stock. but still enough space between it and the water pan which I use as a diffuser and not for water. The cobble acts as a heat sink to keep the temps from fluctuating too fast. (I don't have to move my setup around too much so this is ideal for me!)
Cobble stone and water pan
All foiled up and ready for smoking