Why reinvent the wheel.
A coilover kit using Eibach springs is already available. Plus I developed a sway bar for the rear already (Aussie Bar) - I just need a new supplier to step up to the plate to order, as I cannot sell them myself anymore (conflict of interests crapola).
And don't say you need a front sway bar, because you don't...The front is stiff enough already and increasing it's torsional rigidty is just going to induce more understeer = bad FWD handling trait.
Anyhow if someone out there with a legit businees wants to start distributing Aussie Bar's then get a hold of me.