So, so sorry about your mare, but it sounds like you are on the right track with the filly.
I had a bottle baby a few years ago – in her case it was her first 11 days, until she could get up by herself and then she figured out how to nurse on the mare herself, instead of waiting for me to milk her. (She used to watch over my shoulder while I milked the mare.) I fed her every hour from 6 am to midnight, then every 2 hours between midnight and 6 am. It was a brutal schedule, so I was very thankful when I was able to discontinue it.
I love that your Igloo is also chestnut.
I think that will be a lifesaver!!! If I ever had to do another bottle foal again, it would definitely be an Igloo (though my one wouldn’t have worked with that)
My vet explained to me that with the cool/cold milk, they are much more apt to “sip” it frequently, which is more natural, rather than gulp it down all at once – which is not natural at all.
I would be leary of a goat as a companion. Make sure you get something withOUT horns. We have goats… they have horns… I would not choose one with horns as a companion for a foal. Make sure you get something pretty tame, but be advised they are HARD to keep in. One friend told me the other day (as I chased &^^%$& goats up and down the road in front of the farm) that if a fence couldn’t hold water, it couldn’t hold a goat. Kind of makes you laugh, except for how true it is. They are serious escape artists – and when they are out, then have this special sense that tells them where the ONE place is you definitely do NOT want them… and then they go there. So I wish you a lot of luck on the goat front!!
If you were able to find an elderly pony as a companion, that would be my first choice.