OBDII to OBDI

[SVX92-97]

Question, Im having the complete drivetrain, engine, tranny, etc. swapped from my wrecked 96 Lsi (OBDII) to my 94 pearlie (OBDI) Do you have to swap the intakes, as the OBII intake has a few extra vacuum lines, or can you just cap them off and keep the 96 intake on the engine instead of using the 94 intake. Mechanic doing the swap has never worked on an svx before, so Im his guinea pig. Just want to make sure there are no CEL or driveability issues. Also can I use the front O2 sensors out of the OBDII exhaust in the OBDI exhaust. The sensors have only 18k miles on them, as do all the rest of $3500 worth of parts I replaced last year. Let me know asap, as engines are out of vehicles and waiting to finish.