Is it wise to prepare Minecraft multiplayer maps offline for community hubs and lobby?

Is it wise to prepare Minecraft multiplayer maps offline for community hubs and lobby?
Added (1). Lets say a planned server costs a lot i.e. $100 per month. Is it possible and would it make sense technically to create hubs and lobbies on a single player map?

The goal being to save money.

I want to know pitfalls, if any. I think the preparation for hubs and lobbies could take 4 months as they are to be designed for a School.

Village would be a main feature, community farm (a lot of teaching in that area), each School house would have a hub and each designed differently.

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