It is a big job, but for $850 USD plus parts, it's something to consider.
You'll need a few uncommon tools that you may be able to rent or borrow.
This is my first timing belt, so it's taking me a while, but it's pretty simple once you understand it.
You could probably do it in a parking lot somewhere if you have all the tools/supplies/info and another vehicle to go buy the weird things you weren't expecting to need! Just take lots of pics and label stuff so you remember how to reinstall it.
We're all here to walk you through it, if need be! ?
Best of luck!