That's like asking for a Studebaker shop. I believe that Indian didn't actually make that engine and it's a Honda clone. you are going to be doing a lot of your own work. Part of the problem is that shops that charge $60/hour labor won't want to touch a moped they didn't sell because they see the labor surpassing the value of the bike before they're done and it's not worth it to them. On top of that getting parts will be much easier for you as you can get them on eBay or various used sources. The good news is that moped engines are simple and low tech. Get your hands dirty, it will be a good start to a great relationship between you and your vintage ride. Read Fred's Guide first then start asking questions on the repair board.