I have a Commodore A1200 with Kick 3.0 ROMS for sale that is quite yellowed but works perfectly, it just needs a bit of retrobright love and it will be good as new.
I also have an A1200 motherboard with Kick 3.0 ROMS for sale.
Also for sale is an A1200 Tower case (I think it's a PowerTower but will double check and post the correct type here).
Please PM me with offers.