A 2006 Toyota Corolla clutch kit is only about $ 120.00 . Labour will be the major cost, typically 4 to 8 hours. Plus flywheel machining if needed.
All in, you are usually looking at under $ 1000 ...
IF you can do it yourself, you can save a chunk of change. You will almost always need a lift, and a transmission jack, stuff the average DIY guy doesn't have.
Not really. I've done enough clutches in my garage over the years to know this. A RWD is almost always easier than a FWD, but either is a pretty straightforward job.
If you're in decent shape, you can bench the transaxle back into place. Done that enough times.
All you need is a floor jack or two to support the engine and there are fairly inexpensive arrangements that bolt to the strut towers and suspend it from the top.
The big deal is the cradle arrangement you find in newer cars. Just getting it loose can be a protracted affair.
The last couple of clutches I had done, for between $500.00 and a grand each, but the more costly job included a new flywheel.
The OP would need to shop this kind of job and also consider what's included in the price.