Thanks for activity.
FYI, MAX6675 has been replaced by MAX31855, which has wider temperature sensing range, better resolution, and is available in versions for several different thermocouple types. Still has an SPI interface, but the data format is changed from the MAX6675, so libraries for the earlier part will not work for the MAX31855.
I can't find MAX31855 for convenient price - around 3$.
IMHO buying https://tindie.com/shops/TAUTIC/max31855-thermocouple-to-digital-converter/
is kind of wasting money...
In my case temperature range will not be higer than 800C and MAX6675 should do fine with in 1024C.
I made a break out board for the MAX31855 chip because I wanted to play with that chip too.
I have the bare board up on lish.com with the caps inductors and protector. https://dcande.lish.com/
This is almost same situation - financially disadvantageous for me:
8$ Your product + MAX31855 + shipping and I need at least 6 or 8 sets of these.
Come on guys! Do You would buy 6-8 thermometer for 120$+ ?