Bro, as I mentioned earlier, D15B3 is NOT the one you're looking for - its D15B(period)
You'll need the head, block, intake manifold, throttle body, wiring, distributor, throttle body. Rest is your choice but your old stuff must do fine.
All the stuff you mentioned is included in complete setup but you don't really need to get them all. Just take an experienced mechanic with you and he'll guide you for what you need.
Even though you don't need transmission, but you might wanna change the clutch setup, do check with your mechanic for that.
Head assembly + intake manifold complete is around 25-30K
Wiring + ECU + electrician around some 12-15K
Clutch, engine oil, plugs around 10K
Labor... some 5K