Default Help converting GPE to Sense Dev Edition?

My HTC One M8 originally came with FW ver 1.12.1540. My CID was BS_US001 aka HTC One M8 SIM Unlocked model.

I did a full conversion to GPE via RUU. I still have SuperCID set. I'd like to get back to *US* Developer Edition or SIM Unlocked OFFICIAL firmware. I can only find Firmware updates for US variant or European 540 firmwares.

Is there anywhere that has a RUU for Developer or SIM unlocked, or a FW I can flash to restore Sense from full GPE edition?

I am really stressing Dev or SIM unlocked FW as I don't want to mess with European FW giving me issues with my small local carrier.

Any help is much appreciated! Thanks
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