As mentioned in the previous post, we need a 0-6-0 G6 to work the yard at Thornycroft. There are no n gauge R-T-R models of this locomotive on the market, but a search shows up a brass kit made by N Brass Locos - this requires a Farish 57xx chassis. So the next thing was to find the chassis. A search of the popular internet auction site brought up a few options, as we only wanted the chassis we waited for an auction which started with a low price (£0.99), and waited to see what the price would rise to just before the auction ended. I put a late bid in and won it for £27.99 + P&P, not a bad price as most appear to sell for over £30, and only wanting the chassis did not want to pay over the odds.
One of our main concerns was the height of the guides on the wheels, as previously mentioned. The sizes seem to change depending on age of model. To our delight when it arrived, the wheel guides were on the low side which meant it would roll over our faux concrete track without any problems. The loco is in pretty good shape, and ran around our board without problems. The only minor issue is a few paint dinks, which are hardly noticeable. It'll be a shame to to change it's body, but a Pannier 57xx never ventured down the B&ALR line as far as we can tell.
Just need to order the N Brass kit next...