Back to the 1501 for awhile.
All stripped down (that which needed to be) and built back up, in the end I wasn't happy with the original tank wrapper, it had a couple of creases in it that would not be hidden by the plate overlays, plus, all the holes for domes and handrails were in the wrong place; it was simpler to split it all down and simply make a new wrapper.
The same could be said for the lower half, due to the kit trying to be six of one and one of none the lower half had length issues so I kept the boiler belly and binned the rest.
The instructions are scant on how you're supposed to join all this together, there are no slots or tabs (probably due to the six variants the kit can build) so you're pretty much on your own. If you join the two sections then you cannot get inside for sound or DCC, in the end I modified the front end so that the whole top can come off for easy access to the DCC board and speaker.
The six course tanks are from the earlier batch and there are other details not modelled in the kit, the most obvious being the six big sand bins on the footplate/cab and the flared front to the smokebox, the latter was easy to fabricate, the former will all have to be hand built/fabricated in due course.
Next up the bunker, it may be quicker to scratch build one than work with the etch I have here, there are half etch rivet patterns for all six variants on the inside, all would need filling to make smooth unless you filled it totally up with coal.
There's also the matter of the cab floor, a white metal offering which fails to pass muster in detail, size and quality. Still, nothing too untoward to resolve.