Wellll...,
Realistically...any working runn'n truck is worth around $3000
Any non-working/worn-out items...it's down hill fr. there..!
NOW., weigh in the fact that it's an EB....add in another $1000

/emoticons/
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Soooo., after all that bla-bla... ask for an idea what they want for it..!

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---They might just say..."I gotta get a $1000 for it"...!
Hesitate for a while (if you can) then pay the man.
Depending on your use for it...you'll put in another $1-3K
(super-truck...would req. $5K +) This would be doing the work yourself.
Having not laid & eyeball on it..., I'd prob. go $2000 & take the odds that it's mostly OK.
HOWEVER.., you'll find some who will walk in & offer $4-5K right off the bat.....