Any software or web-app suggestions based on these specific needs?

[Tenia]

Hi Wraithward and welcome to the guild. You may have a look to rpg map editor (https://rpginferno.com/rpg-map-editor), very similar to ANAMap with some more tiles but I am afraid it has the same map size restriction. If you discarted Dungeon Painter Studio because it is not free, you may also try Dungeon Painter Online (http://pyromancers.com/dungeon-painter-online/), the "ancestor" of DPS. Not exactly the same product, discontinued, less tiles (not the same tiles rather) the UI is a bit similar to DPS. It is free, online, with a larger map size than ANAMap, much much more assets and you can use your own tiles.
Regards

[Wraithward]

Thank you, Tenia, or both the welcome and the suggestions. I'll have a look at both. Related question -- I am interested in Dungeon Painter Studio, but at the time of OPing I was waiting on the next paycheck. Do you know if Dungeon Painter Online is a good indication on what to expect from Studio, in terms of UI presentation?

[SaintSpark]

Hi Wraithward and welcome to the guild. You may have a look to rpg map editor (https://rpginferno.com/rpg-map-editor), very similar to ANAMap with some more tiles but I am afraid it has the same map size restriction. If you discarted Dungeon Painter Studio because it is not free, you may also try Dungeon Painter Online (http://pyromancers.com/dungeon-painter-online/), the "ancestor" of DPS. Not exactly the same product, discontinued, less tiles (not the same tiles rather) the UI is a bit similar to DPS. It is free, online, with a larger map size than ANAMap, much much more assets and you can use your own tiles.
Regards

Actualy we update rpginferno.com editor. It's still has size restrictions - HD 1920x1080, but we are looking for optimizing rendering system to allow maps twice the size. Also we added texture editor for custom textures and Icon editor for creating custom objects.