Looks like GPS is the cheapest bet for a new Tilly 212E - Hemi.
Around 250 shipped, & no tax,, at least in my neck of the woods.
I'd personally stick with the Tilly.
Other option is, if money's tight,, is that you could sell the Tilly/ GX-200 Billet flywheel, & the Tilly rod,, pick up a Predator,, & use the money from selling those Billet parts, to get Predator ones.
It would probably save you well over 100 bucks just doing that.
You could probably also return the rod anyways though.
My 2 cents..