Nearly finished making a backup of everything, however;
All care but no responsibility accepted for any loss of items, money, data or builds. If anything go's missing or gets deleted there will be no free items. Other servers you lose everything with a reset, even if items are lost you are still better off than starting with nothing on a new world.
Expect a few plugins not to work until they are updated, including Tardis. Some plugins that have not been updated for a long time may never work again, or maybe everything will work perfectly, but don't count on it.
You will need to wait a few days before I will start to paste in your builds, as I dont want to be last person to leave spawn looking for a great new place for a new base. I'll be runing and boating away from spawn as fast as everyone else is. Protections Stones may not be setup (or work), so clearly label your claimed land with SIGNS. Dont claim an area next to someone else unless you check with them first.
You have had six months to prepare for this, multiple reminders etc. Reset will be very soon.