What would be a fair price for an unpapered 14.3 Arabian who is around 18 years old and is broke to ride but has no formal training in a specific discipline?

At 18, I wouldn't pay more than $1,500 tops and that is in perfect health with no maintenance issues. Probably less if joints are already rough or any hoof problems.
I'd pay $1000
1000 here as well. Arabians and ottbs are a dime a dozen around here.
1000 max
At 18, they are getting old, and with no official training I wouldn't pay more than 900
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