Actually it is, have you considered going in the direction of sleeving the bloc? It's not all a lost cause if you can rebuild the head. Redo the base and sleeve it alone!
http://realstreetperformance.com/Pr...eeves-Honda-S2000-F20C-F22C-87mm-89m-Max.html
Honestly, between scavenging a motor that came from buttf*ck who knows where and just dealing with what you have IMO deal with what you have. Rebuilt motor, all matching numbers, barely affecting the car's value.
Food for thought.
PS: you do all your work? What shop do you deal with?