I have no idea how it would be done or if it's even possible since I'm not a modder myself but I would love to see these 2 mods if possible:

1. A mod that lets you respawn in Minecraft indev. If it only works in one version then the February 23, 2010 version of indev.

2. A mod that adds LAN worlds into versions of Minecraft before release 1.3. Again, if it only works for one version of Minecraft then maybe one for indev, infdev, alpha, beta, and the other Minecraft releases before 1.3.

If anyone makes either of these 2 mods then I'd for sure make a video on my Youtube channel about it or them.