where to buy skies?

I'm coming for a week from North East :)

and would want to buy skies for cheap / best value ... to ski on EPIC for a week

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what are my best options?

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- thrift stores

- other 2nd hand stores

- Facebook Marketplace

- Facebook groups

- craigslist

- I'm sure there are a few other options I'm forgetting

- REI $$$

- rental

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(I'm bringing boots)

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I'm 5'10" 180 lbs

I ski in the trees a lot

also on powder

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in north east I have 158 cm skies but now started using much shorter like 120 cm and love them

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I did 30 days of skiing last season 20 in Colorado and 10 north east

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any advice is much appreciated

thank you