Feel is pretty elusive, most attempts to duplicate it but just do whatever to make it that much better are doomed. You may get lucky, and you should be able to find a newer build that you will love, but duplicating feel is pretty tough.

If you want to be happy with a certain bike build, the recipe is as follows. Come up with some passionate characteristic that is easy to deliver, and that unless the bike is a complete dog, you will work your hardest to accept it. So let's say you never had a lugged bike with custom paint, and for years you have hungered after one. So you get some superlugged and painted bike, presumably well made anyway. Assume there is something about it that you don't find perfect, such that if it was a surly you would trade it off in within the next year or two. But in this case, it is the fulfilment of a dream, you would have to admit you had the wrong dream, and it is built by a legendary builder, what do you really know anyway? So you learn to love it.

Now if you ask for a bike that is very much like some obscure standard, then it isn't, game over. You have to leave enough room in your specs for self-deception.