Paul,
You make an interesting and challenging point. I reckon that Leeds is still superior to Birmingham (Alwoodley, Moortown[much altered], Sand Moor, Headingley, Leeds GC being somewhere approaching the top 100, if only Alwoodley ever quite gets there, as opposed to Birmingham which only has Little Aston which makes it). As for the infrastructure, if you include Beau Desert and Whittington then I can also include Ilkley. Pannal, Harrogate within the same sort of radius of Leeds.
No matter! We're not here to argue, but to celebrate the glories of our golfing heritage. Let me know when you are likely to visit Oxley and I'd be delighted to join you, if I'm free. Penn (which I have not seen since the late 1960s) was wonderfully open - a common-land course with vicious rough and far too punishing for my wild hooks and slices - but it was not in wonderful condition in the those days, so I am glad to hear that its greens are highly reputed these days.
With your interest in Colt you should certainly visit Copt Heath - it's one of the most tightly bunkered courses I know (from experience of years ago), but how much of that is Colt's work I cannot say.
Let us offer you a bed when you want to explore Prestbury and Manchester - up there with the best Colt has to offer.
Mark.