Over on MikMik land, there was instructions on how to install the RUU untouched and give it root - and preserving hboot from future RUUs mucking the bootloader as well.
Permission was given to share as I saw fit...
1) Wipe data, cache, and dalvik
2) Download Thunderbolt_Patched_hboot.zip from XDA by Shadowmite.
3) Open Thunderbolt_Patched_hboot.zip, you should see PG05IMG.zip inside. Take PG05IMG.zip and place it in the root of your microSD card. Reboot into Hboot. (Hboot should say UNLOCKED--highlighted in pink).
4) It should detect PG05IMG.zip. Just install it. Then delete PG05IMG.zip
5) Install full RUU (will lose root and clockworkmod). Then delete PG05IMG.zip
6) Download clockworkmod (CWR4.0.1.5)PG05IMG.zip) from XDA.
7) Rename the clockworkmod download to PG05IMG.zip. Place on root of your microSD card.
8) Reboot into HBoot, it should detect PG05IMG.zip, install it, then delete PG05IMG.zip. Now you have Clockworkmod.
9) Lastly, install Superuser (su-2.3.6.3-efgh-signed.zip) by downloading it from here. Install Superuser from Clockworkmod. Reboot.
You now have ROOT ACCESS (SUPERUSER), CLOCKWORKMOD, AND WORKING WI-FI.