Well it isn't easy to do because of the rather "stiff" nature of the carbon ply. The first one (driver side) I draped the carbon over the plastic molding but you just can't get the narrow edges nicely done. The rest have been made with the use of a vacuum bag which works pretty good actually. But most of the time went to the finishing of the parts (sanding, Pu resin, sanding, clear spray paint, etc).
It took quite a while, also due to the fact that I first finished them of in high gloss which I didn't like. I'm planning to do the bigger ones also but than I have to take the seats out. Not a fun job to do with the heavy electrics...