Listed some surplus components up on eBay... ➡️ 8MHz Z80 CPU 40DIP (CMOS / Z84C0008PEG) https://www.ebay.co.uk/itm/117438813851 ➡️ 8MHz Z80 DMA 44PLCC (CMOS / Z84C1008VEG) https://www.ebay.co.uk/itm/117453586600 ➡️ 100nF (0.1uF) ceramic caps, ideal for decoupling - I use them myself on my retrocomputing hardware. https://www.ebay.co.uk/itm/117463000197 (Full reel of 7500, see other listings for smaller packs)