AE-0000010 and AE-0000011 are the boards used in PS2 3 volt locomotives and PS2 upgrade kits. These are the power (11) and processor (10) boards. There is nothing complicated about any of this.
If you do not like any of this you do not have to buy any of it.
I often wonder when people make a lot of noise, have they ever done a PS2 upgrade.
I sometimes find that a lot of people who always have negative comments, have not done any of this work.
John, I have never seen any feature the kit will not address.