How much would invaslign cost on my teeth? (Photos)

I am a student without insurance. I've had traditional braces in my early teens for 2.5 years but feel unsatisfied with the result. My teeth are not extremely bad but my canines are not aligned as well as my bottom row is slightly crooked. This has taken a huge tow on my confidence and I was wondering how much invaslign would cost if I did not have to make too much adjustments without, insurance? Also, are there any other alternatives to correct my teeth that will not be as expensive as invaslign ?

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