So here is the list of everything I plan on doing to Hornby's R3169 Olton Hall when it is released. Big list of things haha:

Replace moulded smoke is dart

Add 2 black lamps on front buffer beam

Add splasher lining

Replace plastic whistles with turned brass ones

Paint whistle shield black

Paint brass beading on front corners of cab

Add brass beading around cab windows

Replace the moulded handrail beneath cab windows and add upright one in front of windows too

Complete the cabside lining

Paint brass beading along back corners of cab

Complete the tender lining

Replace moulded handrails on rear corners and back of tender

Remove water scoop and add a hydrant pipe fitting beneath 2nd and 3rd tender axles.

Remove 'GREAT crest WESTERN' from tender and replace with HOGWARTS RAILWAYS crest

Add etched 'HOGWARTS CASTLE' nameplates, number plates, and smokebox number and shed plate.

Then after I will look at DCC sound and smoke generator as well. Gonna be my flagship loco so will be going all out on this one.