Thats a though one to fathom out HF.
I had bought this for a Friend along with 2 more for myself. He decided he could not do it so offered me E50 to build it. If you were to add in labour, Heat, Leccy, paints etc E50 would not Cover it really but even E50 extra makes it an expensive bit of rolling stock. It not a Golden age Dyno car but all in I would hazard around E150-E170 if you added in time. It Certainly does not pay to build kits TBH but I enjoy it and that the main thing. Ask me in two weeks as I will be starting some N gauges Autoballasters!!
Put it this way the ESB went up an extra E60 when I started this and the Brake vans!! The war office is not happy!!