If all goes well Sparky, at about this stage you understand that machine fairly well, and have tidied it up so the really annoying faults are gone. You can still get it working even better as you gain some actual experience with it and find the smaller faults that weren't even noticeable at first, but you've broken the back of the job.
Of course your neighbours would like you to make their old ride-ons look and work as well as yours, preferably for free. Is that a surprise?