Wow, pretty impressive selection of sensors, the cylinder pressure has my attention in particular.
I'd be happy with just the load cell and rpm with good automated data collection.
Have you gotten to the point of running a saw on it?
What is the alternator/eddy current device that provides the load on the saw? A proprietary item specific to dynos or repurposed from something else?
Will cooling be an issue or maybe it's duty cycle exceeds the application?
What are you using for a software filter on the load cell? Decimation filter?
Just for some background, I've been involved (mostly on the mechanical side) in an ongoing saw dyno build project with some other members here and elsewhere, that's going on 5 years now I think.
Basic brake dyno, pretty much a scratch build, including totally one off custom software. Probably the biggest issue to overcome was the sensitivity of the load cell to mechanical oscillation caused by the braking, various filtering helped but still could make the data a bit... subjective...
The goal was/is to create something relatively affordable/portable that eventually could be more or less duplicated by others with mostly off the shelf components and a handful of simple fabricated parts.
It's had sort of an ebb and flow and has been dormant for awhile, though coincidentally there have been recent signs of life on the software front that look promising.
Not nearly as comprehensive as yours and an order of magnitude more budget sensitive but still has a certain level of sophistication none the less...
Most of the info is on another saw site that fosters a much more vibrant builder/modder community and unfortunately protectionist policy here prohibits me from mentioning it in any way, shape or form.
Easy enough to find with a little digging and you'd certainly garner more interest there, as well as depth, in this type of project.