Will those upgrades work with open core and the iMac 21.5 mid 2010?

Basically, got an iMac 21.5 mid 2010 for 30$ boxed, I was wondering if I could use that AMD GPU to get metal support on Sequioa (that and the 8gb of vram are very good to pass on), a Xeon cpu (on the same lga 1156 socket) and (but not necessary because the ddr3l ram may pose issues for this iMac) ddr3 ECC sodimms, that and a SSD of course (which is mandatory), thank you beforehand..