Okay so I'm wondering if I can activate a Nexus S 4G over my current EVO activation, although the esn matches another deactivated sprint phone.

Story:
I bought a Nexus S 4G deactivated and flashed to PagePlus. I also have a deactivated LG Rumor 2 (My last phone).
And I have an activated EVO 4G. I flashed the Sprint.prl to the Nexus, and wrote the ESN/MEID that the Rumor 2 has to the Nexus. Now I have 2 deactivated phones on the same ESN/MEID. Can I activate the Nexus and replace my Evos activation with no problems? Thanks

(When I got the nexus, the sticker under the battery had been removed, as to why I copied the Rumor's esn to the device)