You're very fortunate they're laying in their house! Nests outside are very often hard to find.
If she is moved, she'll almost certainly leave the eggs. Unlike chickens, guineas seem to "imprint" on the location of the nest rather than the eggs--until they start to hatch. That's the only time I've known of anyone who has successfully moved them--during actual hatch. If you can section her nest area off so they can't get in, providing her with food and water, that could work. Often several guinea hens will work together on a nest, with all of them laying n it and eventually brooding the eggs. This has mixed results. If the hens are very cooperative, as they sometimes are, when the eggs begin hatching, one of the moms will move off witht he keets, caring for them, while the other(s) remain with the nest to continue brooding the eggs. Sometimes in shifting around, a newly-hatched keet will be squashed accidentally.
You probably know that mama and keets need to be in a safe area at first, where predators can't get to them. Guineas' instincts are for raising babes in Africa, where it seldom rains during hatchng season and where the predators are different from here. A new guinea mom will often lead her keets around through damp grass, which causes them to chill and die. They are usually good moms if conditions are right for them; in this case, safe. There's lots of good information on the net if you'll search for it.
