this depends also from location and currency.
also i sold my hubs in this time where surron where not public "known" with coc papers to ride legal.
for example the legal on cost here now new 3700€
if you build a qulbix your easy at the same price or eben higher.
you can be happy getting 2500 in europe for a qulbix build. /sure depends also on used parts.
list all parts for yourself (what they cost now new) make your decision whats ok for you to sell.
maxe controllers are not anymore "the only one" compared to nucular heavyly overpriced. and quality wise just crap.
as far as i know your battery has no bms. that would be a problem for me selling it to a guy who has no clue about.
dont ask me how i know what can be happen :lol:
but i can tell you that nothing happen(d) when someone charge 18s battery to 20s
anyway. calc and start anywhere. interested ppl will ask questions and make offers.