Hi,
Sorry to hear about your ram. I had a similar situation with a newly bought ewe who broke her back leg on a tree root. I took her to the vet that evening who put it in a cast for about £50. I kept her in the barn with another ewe and took the cast off myself after 6 weeks. Thankfully she was not pregnant at the time but this year she had a super lamb so that'll pay the vet bill, two more will pay for her and any more will be to her credit.
If it was me I'd do it again, especially with a breeding ram.
Hope it all turns out OK.