Hello Mark,
James was indeed
looking for a LAAT canvas, but this was back in 2014. He later reported
Jim Clark of Allied Forces had planned to do a limited run of LAAT canvas tops, but I do not know if this ever came to fruition as
James sold both of his LAATs in 2015.
I am sure there is a (latent) demand for this, and it must help tremendously if you have an existing one to use as a pattern.