Current Pricing - Canada (Toronto)

I was quoted $6,000 CAD (~ $4100 USD) for a minor (12-16 week) adjustment. Backstory - I have had braces ~20 years ago and have had 4-5 teeth move on me that I would like corrected.

Without shopping around, does this seem normal given the lab fees? Breakdown I was provided:

$3000 Custom Invisalign (Moderate 20 - 2 Arch) $2300 Lab Invisalign (out-of-office) $700 Retainers + Lab Retention

or $6,000 all in.

I don't have much time to shop around so I was hoping anyone could chime in to make sure I'm not getting taken advantage of!

Thanks in advance, this will save me a lot of time and stress!