75k maintenance on Prius C

Hi guys!!! Sorry for the long post upfront.

It's that time again, to perform some maintenance on my Prius C 2012.
The odometer is at 79,500ish but I did the 70k maintenance on the car last time per dealer recommendation. (when it was at 74.5k)
However, I'm actually slowly walking away from doing things at the dealer and trying to understand what needs to happen on my car.

According to my owners manual this is what needs to happen on my car.


However my dealer charges a whopping 200usd to do the above 75k, and some other "misterious" things that I can't find reference anywhere.


In particular the following seem a bit suspicious
Lube chasis
Inspect Suspension, Steering & Exhaust systems (I guess its in the manual with different wording)?
Inspect, Clean and adjust brakes (just had my brakes changed a year ago).
Check & set timing to factory specks (what is this?!)
Inspect drive belts & coolant belts (why is this not in the manual?)
Road test ...

How much of this can a regular mechanic do and what is specific to toyota?
Can I just show my manuals page to a regular mechanic and expect to get everything done up to a dealers standards?

I saw a DYI 90k major service being done by a youtuber, and besides all the getting dirty
parts (engine oil, transmission oil), he doesn't talk about all the fancy inspections that toyota puts on their services.

My uncle is a mechanic and works at a shop, so I can just cross the border into Mexico and get labor done for very cheap if necessary.
But I don't know what needs to be done specifically by Toyota to find important things that only they can detect (if any).

I don't wanna get down and dirty with the oil changes, but changing air /engine filters and those basic stuff is fine. I wanna do as much as I can and leave the rest to a mechanic, and still know that my car will be safe and up to date in its maintenances.
Any advice on how I should go about it?

Thanks a million in advance!