I don't know about the price, looks a bit healthy. These Pearse loco's always seem to attract a premium - very nice out of production product, much sought after and popular prototype. About a year ago I saw a Southern livery R/C one at GRC that was well used and needed a little remedial work on the paint, asking price was £1,900, it went for £1600 eventually. Ask Steve at Back2bay6, perhaps he can do a deal for you, PX? (Ask if it is a commission sale, perhaps the owner will move on price)
As suggested you coud wait for the Accucraft Manning Wardle (1-2 years) but it is the later flat backed Lew not the earlier curved backsheet Taw and Exe. Repaints of any existing or future product are not a problem, Lightlines did brilliant job on my GRS Manning Wardle panelling and lining for me (they will do the base colour too). Ask them for a quote.
Best of luck.