You will need a strong wet vac. This 6 horsepower wet vac by Ridgid fits the bill perfectly.
A decent ladder is a good bet too. Like they say bigger is better, so this 8ft Werner fiberglass will do the job. It is light weight yet still plenty strong.
Now this is where the magic happens! A solid vacuum pipe that is shaped like a shepherd's crook is key! This will give you reach as well and strength to really drag along the gutter and suck out the bad stuff! They got them on Amazon for about $35 bucks https://amzn.to/3FHlIlA
I was able to get right up there and clean out that plant!!! With the extensions I was able to keep my feet on the ground, but it does make it somewhat cumbersome to handle the length. The weight was not too bad, just the unbending length made it unwieldy.
I thought showing it next to a standard porch light might put it into perspective how long it actually is.
Now just add a couple of pumpkins to the steps and call it a job well done!
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