I had considered doing that very thing with my white 87 Limited. I tought about changing the obvious items like the headlight bezels, window trim and tail lights but that still left a lot to do. After looking at a true WO2 white T there were a lot of other little items to change to complete the look some of which were; door handles, lock cylinders (trunk and door), power antenna mount, trunk trim, fender well trim and so on. I don't do things 1/2 way so I decided against it.
Strange thing is if you ordered a 1987 Limited and opted for the WO2 option it only cost you $35!! Standard Regals cost $100.
As much as I liked my Limited I get many more complements on my WO2 T (see photo links below....click the T for my current car). The Limited was a pleasure to own due to it's uniqueness.
Had my Limited been a WO2 I wouldn't have sold it for anything in the world!!