In this hobby there are very few new parts available. You’re careful with the good stuff you have as other motors are the only source for replacement parts. As far as coils go they are usually good but the point where the wires are attached to the coil is fragile. Care should be taken that this point doesn’t become loose. If it does the coil is likely to fail. Few of these motors were ever run enough to really use up the points. Replacement condensers are available.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.