I thought the layout is pretty common/standard? Typical US ANSI but 1.5x sized Ctrl keys(and thus shorter spacebar)? At home, I am using the keyboard on my laptop(Dell Vostro 3700), Razer BWU, and Keycool 87(typical tenkeyless layout). At the computer lab of my school, it is using the one in your picture. I don't even find any problems to swap in between all the 4keyboards I stated...
I still don't find any significant different in layout between FILCO and the Lenovo(apart from the different sized Ctrl keys I mentioned). I suggest that you can't get use/not comfortable with the switch, not the layout on the FILCO?
Lenovo

Filco

Back on topic, if normal US ANSI layout not suit you, may be your choice is to go for kinesis advantage as it do seems to had a larger spacing from picture(I not really sure as I didn't own one in person).