Just replace the sleeves with the .040 sleeve. You end up with the same piston size anyway.
Don't even try to "bore" out the sleeves and don't even try to peel them out with anything. Get a sleeve driver set and drive them out and drive them back in.
I've had some recent success with liquid propane freezing and shrinking the new sleeves before installing them.
Of course you need to be extra careful not to be around any source of a spark or flame if you use the liquid porpane. Boom! If you're not careful!!!! Never ever try it in a closed building of any kind. Out in the open air is the only way to do it!
The .040 sleeves you get now are cast iron just like the .090 sleeves and are not steel like the original sleeves.
I've personally not seen a steel .040 sleeve in about 45 years????