Just DIY, www.discoverholland.com (total up 2 hours using train and bus).
But in October it's arguable whether the trip is worth it. season has finished and gardens are ugly. Broek in Waterland close to Amsterdam would give a comparable experience then for far less travel time and cost.
<Erik> & [Sandya]
Do you think it would be possible to hire a tour guide to ride bikes to those places you mention?
Maybe he could organize it himself?
"Not all those who wander are lost.” ― J.R.R. Tolkien
Thanks for your suggestion and tips!