I really hate to say this, but being so young and tiny, you probably have many more weeks of possible hypo attacks.
The nutrical is great, but I would give it every couple of hours. I would also put kayro syrup in her water bowl all the time to make sure she is getting enough sugar during the day. You can also drizzle honey on top of some boiled chicken and feed that to her in the morning and at night. I would also try to get her to eat something very late at night since she has hypo attacks in the middle of the night.
Now for free run. Mine didn't get free run until they were about 1.5 yrs old. Too much freedom at young ages doesn't really allow for proper training. The crate sounds nice or you can get an expen, they have a great Play Yard white plastic 6 panel one at
Walmart.com: Save money. Live better. - it about $50 and if you do a site to store the shipping is free. These are great b/c you can constantly keep her contained or make a big area smaller.
Best of Luck
P.S. I also would get some pedialite and a syringe and I would force that down throughout the day too just to be extra safe about hypo attacks.