The code says that semi autos are illegal, except for the exceptions of certain species. The interpretation is that a semi auto is a semi auto unless it is permanently rendered not a semi auto. That interpretation has held up in court. If you can go into the field with parts and tools in your backpack and do a conversion to return a rifle to semi auto, you do not have a bolt action rifle. I cannot convert my bolt action or lever action rifles to semi auto because they are bolt action and lever action and don't have the infrastructure to be a semi, what you are talking about is a semi auto that is temporarily a bolt action, not a bolt action but temporarily so. The law does not consider temporary conversions. I suggest you talk to the PGC if what I posted is not satisfactory.
When you are up to your butt in alligators, it is hard to remember your intent was to drain the swamp. Stay focused!