I'm 57 as well and I've built a couple of locos in my time.
Like anything else in this world, it's all a case of determination. If you want to build a loco badly enough, you'll build one. It's a case of prioritising your time. If you have to spend seven evenings a week helping your other half watch television, it's not going to be easy. But then, nobody (except LBSC) ever said it was easy.
Building a loco as a hobby is like being in love; you have to be really entranced by the loco you're building, so it becomes a labour of love. If you try to build a loco you're not particularly attracted to but you're doing it because somebody said you ought to, that is a recipe for disaster. Choose your project carefully – too much detail on it (say Les Warnett's 9F or something) and you could easily get disheartened; too simple or twee (say Tich) and it might turn you off because you have a hankering for something more true to life. It's your call; think carefully about it, don't rush into it. For a first loco I suggest you build something a lot of people have built, so that all the bugs have been ironed out. A lot of people turn their noses up at "Sweet Pea", but here is a basis for all sorts of variations to suit your own ideas of how it should look – see what others have done.
Whatever you end up doing, remember that here is an excellent facility for asking questions about your chosen loco – or whatever you end up building.
Go for it – and enjoy yourself doing it.
Edited By Nigel Bennett on 03/11/2012 14:41:01