Ascona B wheel hubs problems.. calling all classic opel experts!

So im trying to find some new wheel hubs for my ascona because the old are ruined. rotors are stuck on to the hub via seized on bolts, tried usual tricks (wd-40, heat, weld a nut on, screw extractor, drill through) and other than drilling through which would have taken forever and a day none worked.
At this point id just like to buy new ones and call it good, but it looks like (via eBay) that the same hubs used on the ascona were used on many old opels. This ad claims asona/manta B and the kadett C A different fleebay ad shows the GT, ascona a/b, record cd and lastly the kadett b/c This one is the one im actually probably going to get, unless you experts say otherwise.
So what say you GRM? Are all the hubs the same and are shared among many different models or should i find the one specifically for my car?

Should be the same as all of them, and the US Chevette and Fiero ones will work too if you want a one piece hub/rotor assembly as long as you swap calipers and brackets too.

^What he said.^
Opel is known to use the same parts on multiple models. Which allows for interchangeability for those of us with old Opel's. Some may be an upgrade and some are identical. I see you're in Opel homeland so parts may be a little easier to get than here. If you speak/read the language This site may help answer some questions. Opel club in Germany.

I'll take your work for it and grab the ones from Latvia!

Edit: Purchased! Might try to find a machine shop to drop it the old bolts still. Always good to have extras

In reply to TurboFocus:

OpelGT.com is also a very helpful site. The member that goes by rallybob is particularly knowledgeable.