The Tender looks like an early CLW (Central Loco Works) or Saginaw tender for a PRR H10 consolidation. It is kind of a unque PRR Lines West Style tender. It is a decent PRR tender depending on if the castings were cleaned up nicely before assembly. It should be cast brass or bronze also. Early ones were cast with a seam down the middle. later ones were fabricated brass with lost wax details. From the photo this appears to be a cast one.
The loco is obviously not like anything PRR. To me it has the look of a Hines or Pierce Heavy USRA mikado. The boilers on those were diecast but the cabs were fabricated brass in later years. I think a late friend told me that he had bought a new fabricated cab to put on his, implying he removed a cast one. It might be sand cast bronze, not diecast.
The loco also seems to have a lot of custom detailing work. It looks like it could clean up very nicely and probably look pretty good with a new paint job depending on how well it was sanded before assembly.