The 11-12 GT500's have the plasma coated bores as well.
I wasn't as familiar with the aluminum block 5.4 as I am with the iron 5.4 and Trinity mill. The good thing there is the smaller 5.4 bore will accept sleeves better than the Trinity.
I found the new Voodoo 5.2 block can be had for $3000 which is 1/2 the cost of the Trinity block........that's a step in the right direction.