I am getting all my RX480s to hard labor now to max my available power.
My sources in Shenzen shared with me that come November, we may see a sharp drop in hash due to 4GB cards going offline. This should give us enough time to get ready...
If ETH goes ballistic hopefully I can source enough OEM 5700XT on K35s from Shenzen, before the herd comes in.
Think I got myself a partner who will be able to help with liquidities. I'm considering waiting another 6 to 7 weeks to see if 3070 is a better choice than 5700 XT though. Hope I won't be too late to the party.
Waiting for the 3070 is not a good idea.
You should consider doing 2 rigs
one with 5700/5600/5500
and then one with 3070 later.
If you are USA based. You can be mining by Tuesday the 8th