I just wanted to post my thanks to the OP, and make one small observation:
I have visited a few of these bases and had pretty good luck getting the data I need, but I went to Kokary 3 - Sawyer Beacon this morning and couldn't find anywhere reasonably close to land my Asp Explorer. The terrain is very rough around this settlement. I'll have to go back in a smaller ship and see if I can get it on the ground successfully near the base. I didn't try landing within the trespass zone, however. Maybe that's a viable option if you don't care about fines/bounties.
I remember this particular "picturesque" settlement on Kokary 3, as it's me who have added it to the list - at that time we have discussion with cmdr Devari in previous thread as it is really difficult to access on larger ships (I failed to do that also). I can try to add some "special notes" (this and gravity factor as example) to the list if I'll have the time necessary (one of the reasons I'm waiting, hmm, patiently for eddb implementation of settlements size/layout/security info).
However I will not recommend the risk to land in restricted area - beside fines/bounties you can also get all the base defenses to chase you - and in case of npc ships present this can result in negative experience =)
Note: in my spreadsheet with maps you can find the dimensions of RAF (restricted area to flight) and it's placement in respect to TTD (travel target destination, marker that is placed somewhere near the "center" of the settlement when is is chosen as destination in nav.panel). RAF is always have a form of an imaginary bounding box oriented along settlement's "natural" axis (*). In the spreadsheet the shortest distances shown in respect to settlement's "pictogramme" -the same as map - orientation, where "N" - is upper side and so on. Those "bounding" distances are not the same when approaching from different sides, sometimes the difference is very significant.
Good example of this is Large size Low security "Scientific" Layout - L3L. If one approach from the left (or "W",or 9 o'clock) - i.e. from the side of comm array - it can nearby fly directly to the settlements center - limit is only at 100 meters from the TTD, so one can land literally inside comm array between comm-sat plates (beware not to land on skimmers). At the same time minimum approach distance from any other side have an order of 1 km. One of annoying things with settlements is that if you landed too far away - not planning to dismiss your ship - on your trip to settlement the ship can auto-dismiss itself due to the limiting distance and after you will be obliged to travel far away from the settlement (3 km?) in order to recall it. So sometimes a practice to find "good" direction from which is better to approach given settlement's layout is necessary to save your time.
(*)Note: the only one exception is medium size military layout. It's "natural" axis is turned by 45 degrees in respect to map/icon orientation (this is noted in the doc).
UPDATE: oh, it looks like this settlement is listed in cmdr Davari's list, not in mine (may be I haven't entered there exactly for the access difficulty reason). Now I've added them to my list with special note.