Although I've seen various YouTube clips of Heaton Lodge I only found this thread last Tuesday, since then I've worked my way through all the postings every evening after work.
I must say that I'm exhausted and amazed, both by your stamina and enthusiasm for this project together with your obvious talents and gift of being able to observe and recreate such detail on your railway.
Although you are working single-handedly you are, quite rightly, not afraid to call in professional help when required.
Bravo Simon and I raise my glass to you!
Cheers
Richard T