Having almost completed my belly skin replacement, I'd recommend using
www.airpartsinc.com, but use their 3003.
http://www.vintageairstream.com/FAQ/FAQ_7.html#BellyPan
RJ
> Does anyone have any recommendations on the best place to buy Aluminum for
> replacing belly and upper skin pieces? I can buy it from Aircraft Spruce,
> who I deal with for my airplane all the time, but I suspect there may be
> places that are less expensive.