Digital restoration of old maps

I have access to several digitized historic maps that I need to restore to former glory. Some of them have marks from tape, others have stains that should be removed. I have done some restoration my self, but I lack the skill and time to do it my self. All of the maps are in high resolution so that they might be printed. It is important that the restored map has the same resolution as it did prior to the restoration. Every map is in jpg and I need them back in the same format. I can share the maps I need to restore in a shared Google Drive folder, and I would like them put into another folder once they have been restored. The amount of maps that needs to be restored will vary from time to time and if we get a good working relationship, there can be new maps needed to be restored from time to time. Of course also depending on me being able to monetize the maps. I have added an example of a map that needs restoration. This one has a shadow on the left side and a mark from a tape in the bottom. Please include in your presentation the amount of time you would need to restore this map and also include comments if you see other parts of the map that would need restoration (that I might have missed).