Of the two TRFBs for the Blue Pullman, 40801 remains a Buffet type vehicle for it's First Class passengers, and has kept the very smart FGW designed Buffet Counter (First Class Passengers on the BP have a Buffet Service Only), while 40802 has been totally gutted out and rebuilt as a full kitchen vehicle (Now designated Mk3 TK). Understandably, this has taken longer for it to be completed but will now be able to cater for a lot more diners than previously, with output from the kitchen now possible at both ends. Picking up 802 isn't the main reason why the set has gone back to Eastleigh (general fixes / snagging) though it will make it a lot easier.
LSL also have 40804 & 808 but these are for other uses.
Indeed, the choice of bringing up the ex GC TF's to almost GWR Standard was somewhat surprising. Normally you tend to find operators trying to reverse engineer the quality downwards. In a way, it's a shame that the rest of the EMT fleet wasn't upgraded at the same time (even the length of the franchise / stock isn't a barrier anymore, as we've seen from GWR). Since their replacement, the 3 ex GC TRSB's were moved from Derby to Ely, and Ely to Newport Docks (Sims) on June 8, 2020.
The end carriage walls were also re-covered, previously they were covered in a vinyl type covering in cream with a small white gWr on it too. Those headrest's are not easy to remove from the seat base either, so it's impressive that they were removed and the GWR leather swatch replaced with a purposely embossed First Class one for EMR. Either way and as I mentioned the other day, I would personally put the ScotRail version of this over GWR and EMR, just, and considerably (and surprisingly to some) the Pullman. But taste's vary, as do carpet choices...
I have to say I'm a little surprised to hear that. I know MML spent a fair bit of money in rectifying the bodywork issues on the TS/TFs which included removing the small luggage rack window (and in my opinion making the Mk3s look a lot smarter), though some of the 408XXs which came across to GW were in an awful state bodywork wise, with some of the home fleet being in much better condition. I took a few trips last year which, continentally landed me with 40808 - the holes in the bodywork were somewhat impressive! It's also one reason why I'm surprised to see it included in the LSL fleet.