Re: Easy peezy, lemon squeezy
Cheers! Don't mind if I do
I meant to comment on patch panels and switches but got sidetracked and hit submit.
Personally I would wire them up to patch panel for future flexibility. You could probably just house switch(es) in same space as the patch panel (I'm assuming none of your cables need to be longer than 100m from the patch panel to the wall port) and there is sufficient ventilation to the switch(es) don't cook.
If it was me, I'd probably also try to get incoming internet/telephony wired into the same space. Easy to then do what you need with it and/or distribute.
Cannot comment on the observatory, other than excellent idea! As for another workshop, that is a no brainer. One can never have too many workshops.
Good luck with your build!