The Skytrex yard crane is a nice, easy kit, mostly white metal. I added the base which is really necessary. Recommended. I sprayed mine with rattle can anthracite bumper spray with white safety markings.
The GWR water tank was extensively researched over several months with very few decent photos. I eventually worked out the rough dimensions and designed a scratch built brass structure and tank (the roof is plasticard). It was not an easy build with a lot of use of a gas flame to get the solder to fuse. But very satisfying. Unfortunately I could not find an appropriate kit that looked like any of the North Warwickshire Line tanks (Stratford, Earlswood, Henly-in-Arden) so based Moor Street on those as they were all built in the late 1900s. Knowing your impatience, Larry, I would suggest looking at what is available in the laser cut ranges, so my tank is not a recommended route to follow!
Other items I sourced from Skytrex include the water cranes, various cast produce baskets and so on, a trolley, passnger bench etc.
Any other questions, do ask!