I am so sorry.
Maybe next year you can order some keets from Cackle Hatchery (if you can get some from them)
I'm so sorry about them all passing. It's never fun losing guineas and finding bodies. So sorry.
Not being rude, but a year is much too long.
I let mine out at maybe 4 months, and they did fine. Guineas are meant to free range, they shouldn't be cooped up for a year.
Just my opinion.
Okay, first. Are your guinea hens laying? If their not laying, then there is no chance to breed them.
I would let them lay for a few months before hatching their eggs. Just be warned, we are almost at the end of the laying season. I've incubated around now though.
If your hens are laying...