@Merian2014, @glich
Thank you, guys! Sorry for this long delay.
Yes, this was a big project for me. I worked on it for almost 18 months, but at that time I was new to Arduino and electronics, so I was learning along the way. System is working stable for the last 8 months. No reboot needed so far.
I only regret I didn't go for larger 7" TFT LCD. The screen is showing lots of information at once, so with larger screen would be easier to read and control it.
Which part of the sources are you interested in?