Why not just add an HP2551-C display console to the GW1002?
The trouble with the Android tablet solution is what app are you going to run? What is required for the app to get data? You can't run WS View because that doesn't show you everything in one view without scrolling and it goes portrait on a tablet, so it wasn't designed to be viewed as a console. You could run Home Weather Station template but then you would have to host that on a web server (in house or hosted), and I haven't seen how that looks on a 7 inch screen (it is crowded and shows all the info without scrolling), so I'm not sure if it was designed with a 7 inch screen in mind, fonts may be too tiny and this might be other other extreme of too much information. There are some other live views if you run applications like Weather-Display or WeeWx that are not so crowded. So that might be something to check out. Oh I almost forgot ....now you can try Cumulus MX too.
I suppose after you have the GW1002 you can test and explore these options and see if you like how they look on a tablet. If none of them suit you then you can always get that HP2551-C later as an add-on and nothing goes to waste.