image for LCL pi boy rasp 3a+

hello i buy a lcl pi boy with rasperry pi 3a+, i want know wich lakka build i could use on this device?

I also have a gpi case with rasperry zero w 2 , this image will work on rasperry pi 3a+?

Also i someone know here i can get a battery that can replace the original in lcl pi boy… any help will be apreciated.