There are various methods for producing "one-off" pcb's at home.
I think that the easiest is the Copy Transfer method where a reverse image of the PCB is printed onto a transfer sheet which is than "heat laminated" onto the previuosly cleaned copper clad of the pcb. Because of defects in the process, it is well worth the effort to use a transfer foil (look up "hot stamping" for sources of foil that will adhere to the toner and cover up and pits/cracks that might compromise your etching.
You can get very fine traces using this method. If you search on You-Tube, you can even get information on how to make Dextrin-coated release paper but I've been able to make good boards just using simple acetate sheets in a photocopier or laser printer.
Good luck,
Doug
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