Which carb is in your 024 now?
Kit should be easily enough found- but a lot of people swear by a bath in an ultrasonic cleaner.
We do not have E fuel here, so do not suffer many of the associated problems that seem to plague saw fuel systems in R fuel countries.
I guess it depends on the rest of the saws condition and its value to you as to if $75 is a bit steep.
Chinese carbs, in my opinion and experiences with- can be very hit and miss- usually erring more towards the miss.
Ebay kit unless a genuine Tillotson or Walbro are likely to be Asian clone kits,