We have several piles of stone effect concrete blocks. These are similar to Cotswold Bradstone blocks (the buff coloured ones in the background that are not included), but not exactly the same (hence the reason they are not required).
One pile is been has been dressed but sat for quite a few years, so probably need a pressure wash off.
The other pile is from demolition of our conservatory dwarf wall - a few blocks are cleanish, but most need dressing. A few even still have cavity ties attached.
You will need to transport them and they are heavy, but you can do multiple trips. Can split if you don’t want all of them.