I've just been admiring your Sonic - it's become my "reference build"
Although I intend to maintain the cost model - a "poundshop" build as it were, so it won't get carbon blades or fancy wheels!
Let me know once you've got the frame sorted (sounds exciting), I've got bullhorns, bar-end levers, inline posts etc, you can have for the cost of postage.
Do it!
99p? I hope you haggled.