The actual Beta/Alpha for the 495f seems to make good work - in the german-board are some people who get this thing work good. (scipts included)
Please post a link to where you got the source for the D & F firmware ? Probably better that I use the most recent - what you sent me earlier is only the sub directory.
What do you mean with "create build environment" in the chdk-shell ?
I was asking if you were able to setup CHDK-Shell and create the firmware for 100d, 100e & 100f. It seems you were sucessful - good job !