Hello Mario

One company I like to use is Teklam.  Great bunch of folks and have helped me
do a number of odd projects.  Unfortunately I don't have the phone number for
them but you can probably get them on line.  I think they are in Corona,  Ca.
but I won't be in the office for awhile to get you a better address.  You
will have to be specific about the weave, core, fabric and number of plies.  

Another source but they are stricktly on a first come first served basis and
they may or may not have an equivilent product is the Boeing warehouse (in
Renton I think).  They sell the stuff for probably 10 cents on the dollar but
you have to pick it up.

Dan Newland