AE Aegis Evo 5.1 - What are they worth?

[RobinKidderminster]

I have sold various items over the years but never speakers. Am I asking about right at £400 on Gumtree. Assuming AV kit is great condition is there a percentage sale price as a guideline? Buying second hand what sort of % should we look for or is it just a case of bargain hunting? I could do with a Glasses Guide !

Opinions valued thanks.

 

[RobinKidderminster]

Someone asked me if they could replace the speakers with an LG Surround / Bluray system. Any idea if they would be a good purchase?

Cheers