Are you trying to sell those? I saw a listing at Marktplaats for someone who had 32 pieces..
If you're lucky, selling those can cover the price of new 310Ah cells.. (which will take a long time - shipping is slow these days, prices are increasing and some BMSses are also becoming more expensive / out of stock)
Slightly jealous on those bigger setups.. still on my wish list.. But without any options for solar (VVE which doesn't allow it - even if the roof is perfectly suitable) I don't have it for now..
Only have 4 280Ah cells in my campervan.. If I ever find a nice new house I'll go for a massive DIY bank, at that time the electricity prices are getting up I think, and its a matter of time before prices are based on demand, which makes installing your own storage much more attractive.