You can unclaim your res on smp1 with /res unclaim, but it will delete everything in it. And then you can claim a new one on smp5. Or become a Gold or higher supporter to get a second res: http://empireminecraft.com/upgrade/
Can't it be done with worldedit? i believe senior moderators have that tool, and also admins Maybe making a schematic? anyways, i know that's hard work and it's cross-server and that is not for everyone but maybe a perk for donators? Schematics here