@Cass
Problem is, you will hardly any 100MBit chips with an ISA-interface, while
that is no prob for 10MBit chips. And building a Z2-to-PCI interface costs much
more than a Z2-to-ISA interface.
Make it an Z3-2-PCI interface, combined with the low number that can expected
to be sold (~100), and you might end up at over 200Euro ......
And you won't be able to sell even 100 at that price ....
But really is that a problem ? You got Amigas with PCI-bridges, you got
Amigas with HighWay/Algor (allowing for the Norway-upgrade), you got the X-Surf,
and you got lots of 2nd hand cards.