z3 access is multiplexed address/data cycles. that puts a layer between the cpu and bus controlled by the chipset. dma burst modes are similar but different than 030 and quite a bit different than 040 burst.
i dont think it could be as fast.
a memory card that clipped on top of surface mount 030 or under pga 030 or 040 would be better. there is better info on the interface and it would concevably be usable on accel boards as well.