I was able to find a used SAPPHIRE RX 550 2GB card, that including shipping was just under the magical sum of 75 USD - the point where taxes kicks in around here. Also as @Ethanol noted the RX 550 is the highest AMD GPU that dosen’t recommend more than 400W power supply.
Performance wise I can’t tell the difference between this card and the integrated graphics I have on my CPU. But finally I can use a multiple setup without any glitches, although at the end those glitches were due to an unrelated issue I wrote about in the original thread.
I want to thank you all, for your insights and suggestions. I would probably still fight this issue if it wasn’t for your help.
Thanks.