If you and/or him did not sign anything about money or/and records then it’s just an illusion (a mutual agreement from 11 years ago). No one can prove anything. A pretty common situation between friends.
You will never get your money back unless he will give it to you for some reason. He will never get his records unless you will give them to him for some reason. Very simple. You both have been waiting for 11 years already.
What you have to know is that records DO NOT COST MUCH unless there is something rare, dealers will never tell you the real value of this collection and they will resell all the records separately for much higher prices. If you really want to sell records you have to look for each record online on the sources like popsike and discogs , then you will be able to separate rare and expensive records (if there are any) from cheap garbage. Dealers will rip you off again giving you about $3 per vinyl and then you will see them for $30 or even $300 (if there are rare records) at their store!
You will never get your money back unless he will give it to you for some reason. He will never get his records unless you will give them to him for some reason. Very simple. You both have been waiting for 11 years already.
What you have to know is that records DO NOT COST MUCH unless there is something rare, dealers will never tell you the real value of this collection and they will resell all the records separately for much higher prices. If you really want to sell records you have to look for each record online on the sources like popsike and discogs , then you will be able to separate rare and expensive records (if there are any) from cheap garbage. Dealers will rip you off again giving you about $3 per vinyl and then you will see them for $30 or even $300 (if there are rare records) at their store!