Looking at the picture below, Xray may have left the door open (whether intentionally or unintentionally) to allow for a toe block style system to be used without having to convert to an aftermarket chassis. The new suspension mounting blocks already have enough room to span the bulkheads. So all it should take are some toe blocks designed to extend a bit further and capture the hingepins. I am sure if this is possible, there will be many aftermarket companies out there ready to knock out a design for this ASAP. Heck, if someone wanted to give me early access to a T4 I would be happy to fire up SolidWorks and get started on the design myself