Dead Litespeed Vortex Compact… What next?

So approximately 280miles from the end of London Edinburgh London (rider A33), my 2006 Litespeed vortex compact let go in a big way.

There is now a crack running almost the whole way round the bb through the downtube and seat tube, leaving around 1.5cm of metal keeping the frame in one piece at the bottom end

With the disaster put to one side and LEL finished on a spare bike i’m looking for any advice on what to go for next.

I don’t have a huge amount of experience with carbon frames so what are your thoughts on my short list:-

Cannondale supersix Evo HM
Giant TCR Advanced SL
Specialized tarmac SL4
Giant Defy Advanced SL

Any glaring omissions from the list? Anything I should be steering well clear of?

Thanks