Be warned - there are some parts that are straight up impossible to get in good shape. Yes it's a PITA to store spares but regret starts the week after you've sold something. The good thing is that a bunch of the mechanicals from Gen 2's are a nut and bolt swap and usually result in an upgrade. Some of the Gen 1 mechanicals are not easy to source - simple stuff like brake shoes etc that are now classed as obsolete.