Yes I ignored 2) however some thoughts...

With EBIS you will probably create a very nice surface, a perfect round shape, debris washed out. I have no doubts about that.

The temperature distribution with EBIS is the same everywhere, but when the engine runs on fuel you have different temperatures in different areas of the engine. The fuel is flowing into the engine and has an effect on the temperature of the crankshaft and surrounding parts and more important the flow channels and the sleeve. But this effect will not be the same on all areas in the same way. Especially the temperature at the exhaust port will be significantly higher than other parts of the sleeve. As a result the piston and the sleeve will not be 100% circular. But it will be circular when it comes out if the EBIS and this not ideal keeping in mind that it will wear differently once it is running on fuel.

I do also think that the sleeve will horizontally expand in a different way when it runs on fuel. You will have a relatively higher expansion at the top, compared to the middle and bottom section. Again using EBIS you have the same conditions everywhere so the expansion will be almost the same everywhere. As a result the piston and the sleeve using EBIS will have the perfect shape at the temperature of the oil bath but not when it’s running on fuel. Thus in my opinion the wear of the middle to top of the piston using EBIS is too high, and in a worst case scenario the piston may even tip over when it is running on fuel and will have a different wear.

I have some more thoughts on this. However please don’t let us start a discussion. There are different opinions which lead to different methods. I am not saying one is wrong or the other one is better in general. I just want to build a solution not to use this hudy bench anymore.