Take a look at the KVARTAL system sold at Ikea. They have a ceiling mount track that may work. Here's a link to their buying guide - go to page 10. Here is a link that might be useful: KVARTAL

I agree with cafe curtains vs. shutters. [Traditional Dining Room[(https://www.houzz.com/photos/traditional-dining-room-ideas-phbr1-bp~t_722~s_2107) by Providence Interior Designers & Decorators Kate Jackson Design But I'm not a shutter person...though certainly shutters work too. [Traditional Living Room[(https://www.houzz.com/photos/traditional-living-room-ideas-phbr1-bp~t_718~s_2107) by London Interior Designers & Decorators Lisette Voute Designs

I would say hang inside the bay windows. Also get the 96 and have them shortened. If you really can't sew anything, almost any drycleaners has alterations available - they will do this for you at a pretty low cost. I sew myself, but hate hemming pants, I have splurged on a local seamstress from the drycleaners nearby to hem for me once in a while. A huge help when you have to measure yourself, mark, and what not. She only charges $8 for pants. The hem is the same especially with no lining, only straighter. As far as DIY curtain rods, I have three bay windows myself. When we first moved in I needed to just cover them to avoid peering eyes. We are trying to gut and completely remodel the entire house, so we are also going to eventually replace these, so I didn't want to spend much. I used IKEA brackets, very simple two dowel brackets, wooden dowels from the hardware store which I sanded and stained and as a connector I used pvc pipe connectors to make the angels and get everything snug. I just made sure the curtains I sewed up covered all the hardware in the corners, definitely a pocket curtain not a tab top type of set up. The top dowel shows a bit, but looks like a normal rod. I will probably up the quality of the set up when we install new windows, but I am definitely ok with the current set up for however long it takes (this is a 10 year renovation we figure).

HI, I know i am late commenting on this one, but we are spreading the word about a new bay curtain pole that doesn't have brackets at the corner so you can have eyelet curtains which i think would be perfect for what you are looking for. The pole can hold utp 30kg and is amazing. Your eyelet curtain poles can go around the corners without being obstructed by brackets, this means that you can have a pair of curtains working around the window and then drawing back out of the way. This pole is only suitable for 3 sided bay window. Eyelet Bay Curtain Pole You can purchase the eyelet bay curtain pole below. Please see the video below and the image