Does anyone know of a *cheap* netbook with built in 3g

Will be used by diswasher/oven techs that have messy hands and will damage it within a year. Thought about going for panasonic toughbooks, but decided it will cost less overall if we can find a netbook around the ~$400-700 price range

Currently have been using eee 701's (4gb SSD w/ 7" screen) tethered to some crappy samsung cellphones but the client wants to get away from tethering so the laptop isnt tied to a cellphone. This means android hotspot tethering also wont work.

I remember the HP One used to have a unit with built in 3g but they are an old model now.

Software on the netbook is a locked down windows and remote desktop client so they dont need to be very powerful or fast.

Any suggestions are much appreciated.