I personally wouldn't bother with any of the boat anchor ford V6's, even the cossie one, it was even worse than the yb!!
Seriously in this day and age why not consider something radical like a TD lump, like a 330d lump, same bhp as v6 cossie, but around 100ftlb more, at around 2000rpm less whilst doing 45mpg, and that is before it is even chipped easily and cheaply, will last a lot longer as well.
If going for a later engine 245bhp std, £240 later it is 300bhp, and nearer 50mpg,(tdi tuning box), extra 100nm as well!!.
This will piss all over a v6 cossie, and a huge amount of other cars come to that, think it's the way I'd go doing it all again.
tabetha