the ABS light thing was from a faulty abs contoller in 94 and 95 accords. it was a partial recall, meaning the dealer covered half the charges but it still worked out to being around $600, so my parents decided not to get it done. the car still brakes fine but the abs no longer functions.
the swap should not be dificult if you are putting in the same engine. it's when you change it and the wiring harness and engine mounts don't match up when things become difficult. but now they sell mount and harness adapters.
where are you located?