This is a basic nether spawn, it contains a portal and 4 enclosed pathways (with minecart tracks) going off in each direction.

Each pathway is easily extendable with something like WorldEdits //stack command until it reaches land.

There is a chain suspending the orb from the top of the nether which will need to be extended with //stack until it is the correct length, then finished off manually where it meets the top (this will only take seconds).

Placement: It is intended to be placed over a large open lava lake. When pasted, you will be standing 2 blocks below the centre of the base of the orb.

Requirements: Most servers already have these settings, but fire spread, lava fire spread, and possibly lava damage and fire damage will need to be disabled.

Contains: Lava, flowing lava and fire