Yes, I could do that... and I will make a copy of the topdeck when needed.
My goal this time would be to keep it a clean Hop-Upped Tamiya car

We are quite lucky in Germany. Spareparts are no problem.
And good news: I found a shop, that has still three (!) carbonfiber topdecks 53147 in stock
You will not find any of its products online with Google search. You have to visit the website and then you can find it.
I am sure that is the only reason why they are still there.

Today I took time to calmly build the chassis. As a touring car or high end F1 guy, this chassis is really awkward. The solution with the friction plate and t-plate is really strange. Then these mini ballstuds on the steering hubs and the servo saver...



Also, I find the chassis very ugly up to now (my personal opinion). I should not forget to mention, that Tamiya does not include the bumper brace, the bumper foam and the bumper base plate is something new, that can‘t fit a bumper foam (see picture above). Like that the front of the body will hover on its own in front of the bodyposts. If you crash...

Then something very nice happened. The mailwoman brought all parts I ordered (except for the topdeck). The wet dream of every Tamiya fan. Right now I am very happy as I got every Option Part I wanted and even more. Still missing is the Tb-02 bumper. I found it in an Ebay shop, but the owner is in holidays until march. Still happy, look at it

Thanks! I am always wishing for a time machine if I see those Courage bodies at the Tamiya track pictures. They look so nice. And having so much people playing with these beauties...

The car is looking a lot better with the Option Parts
I made a good step forward in achieving the look of the car at page 13 in the manual. I used the TBLE-02 esc and deleted the orange cable as well as every cm of unneeded cable. This way the cables to the box-stock-motor stay close to the center line above the topdeck.
Installing the servo was a pain. If you use the white servosaver and the wire type turnbuckles, then it will work without collisions. I want to use the high torque servo saver with blue aluminum arm and 42mm turnbuckles. Like this the servo saver body will hit the servo mount wall. No matter how I tried and turned it, it wouldn‘t work. I returned to my hobby cave to look into a solution between my Tamiya F1 stuff. In the end I took the servo mount walls of my shelfqueen F104w. Tamiya never changed the front holes and so it is plug and play.
I also installed the Rear Suspension Ball Mount Set. This makes more sense to me than squeeze a o-ring. But now the pod is free to roll and has nearly no dampening The friction plate is to weak to correct this. Therefore the TRF special damper seems kind of overkill by beeing a second damper. Well, it looks fantastic and also the set came with a blue damper mount, the real reason I bought it

As you can see I am going for the japanese Tamiya look with a brushed setup:










Right now I am happy with the look. The eagerly awaited aluminum motor mount, cfk topdeck and bumper will make it perfect.

The car is already running flawless. Just the included motor sounds not good. If I turn the rotor, at some point it has more resistance...

I put on the Tamiya Damper Grease in medium strength.