good times there kalaber!
my old 500 did
0/60 in 4.5
0/100 in 9sec
so yours is right up there,
the ultima with only the 640 bhp engine is 5.5 to100 so with the 720 bhp and maybe a blower for wot? 900 bhp? will be a little quicker.
only trouble is its going to take atleast a year to build te bugger.