BTW: I am building an Intel 4004 or possible an 8008
with flip chip modules.
Will tell you when I start it.
Those parts were in the 3000-6000 transistor bracket. I'd expect an 8008
in flip chips would be bigger than a straight-8 (that's larger than an
8S). Why? The 8008 is register rich compared to the PDP-8 series and
for every bit in a register thats a flip chip (8008 is about 45 bits of
registers alone and then there are the FFs in the state logic). This
thing is going to be HUGE. The 4004 would be less ambitious but there are
still a lot of FFs in that part.
Allison