On Thursday evening, Friday at dawn, last night and this morning finally managed to drill, cut, tin and populate the new frequency meter prototype. Took a long time. I hate to solder jumpers, and this has plenty of it.
I did not tried yet, but if it works then only 10-20% of the software and the calibration is left as to do.
It would be nice if I'm able to finish it tonight / tomorrow dawn to be able to send it as soon as possible.