To make your life simple just get a B16a ! These are the 3 main items you should focus on.
1. Complete engine swap $1600.00 shipped with everything included axles and stock mounts.
2. Bolt in Mount kit. $350.00 thru $500.00. Makes the swap soo frigging easy and trouble free. *right now www.jdmhondaparts.com for a 1st gen complete swap with the mount kit for $1900.00 shipped.
3. Small wiring changes to change dual point injection (DX) to multi point injection (SI or HF) Is just to add the extra injectors and the wires. This is pretty simple and is anywhere from free to $200.00. It depens if you want to pay someone to do it.
Overall I will gladly say it will take safely around 2300.00 2500.00 with everything included plus the extra parts that you need. And you will have to swap in the following or at least replaced while the engine is out.
Timing Belt
Water Pump
Thermostat * dont have to but on a damn 10 year old engine you might as well doesn t matter how long it sat in the car while in japan)
Distributor cap and rotor
Radiator hoses
Spark plugs and wires
Alternator belt.
Those items above will save you some money in the long run. Those japanese engine average around 30k miles but is always good to have those items replaced while the engine is out.
Now someone please save this thing in some sort of an archive as I have never written anything this long.
HTH