First of all..
No you did not brick it! It is fixable
My guess is you unlocked with the Non GPS unlocker which is 0.41 or 0.40 and then flash to a GPS ROM.. Which conflicts because you also dont have a GPS radio so you will get stuck on the boot screen
Try creating another custom ROM that is NOT GPS!!! and flash that while in bootloader mode.
That should work since you will now have a compatible radio and ROM and unlocker.
If not then you need to get a GPS radio on your phone. But I am not sure how at the moment since you dont have a GPS unlocker
I am hoping my first bit of advice will guide you out of this..
Post back and let us know if you fixed it!