Greetings,
I was afraid of it blowing up the distribution size too. Both files are needed to get all the keys since some characters are on the top while other characters are shown on the side of the keys. Perhaps it would be best to use the pictures I sent to create a file like your keyboard.txt files. That would be small.
I've had this keyboard for many years. I am not sure they actually sell them anymore. I suppose the hope is that GNU APL brings renewed interest to APL and causes someone to re-release the keyboard. Although the Unicomp APL keyboard may be hard to get these days, I believe there are a lot of them out there.
Thanks.
Blake