Ok I found a old frame that I think will will be able to pick up for free tomorrow.(Trashpile bike) Its an older shiwnn sprint. Right now I have gotten my GF to commute to school on a mountain bike on a pretty regular basis(reads: not raining) She will ride through the winter and what not and seems to like it. I have discovered that she only uses 1 of her 24 possible gear combinations. So once i found this frame which should fit her perfect I am thinking of making her a SS speed bike. I don't think she would like a FG bike. The bike currently has 27 Inch wheels on it. My question is:

Can I thread a SS freewheel hub Like this: http://harriscyclery.net/itemdetails.cfm?ID=905
to a wheel like this: http://stores.channeladvisor.com/ebi...ms/004-we8691?
That says that it has a formula freewheel hub.
I know thats a crappy whee, I just don't have the money to drop right now and want to make sure she will use it before I get something nicer.

Any other ideas?