Learn Me: MegaSquirt PNP (Miata content)

Alright, pretend I know nothing about engine management in general, and MegaSquirt in particular. Because I am ambitious/insane/stupid I have chosen to attempt my first engine swap, my first brush with aftermarket engine management and my first application of boost all at the same time on the same car. So, I am planning on dropping a supercharged 2000 Miata engine into my 1990 Miata. And I have no clue what I am doing. So, I have questions. Note: This also may stray into Miata engine swap questions as well.

What version do I need?: I'm pretty sure I know the answer. I need MSPNP9093, correct? Match it to the chassis, not the engine?

Sensors?: When I was planning on running a stock 2000 engine on the '90 ECU, I remember that I needed to put the 1990 sensors on the new engine. Is that still the case with MegaSquirt? Or do I run the 2000 sensors (including the crank trigger)? Do I still need to run the 1.6L throttle body or can I run the 1.8L throttle body (or aftermarket upgrades)? Is it pretty much the case that if it was needed to run it on the '90 ECU, it's what I need to run on MSPNP9093?

AFM: Does MegaSquirt allow me to toss the restrictive flappy-door 1.6L Air Flow Meter and run MAP or some other system?

Fuel: The blower kits I'm looking at come with FMUs or RRFRPs or "fuel cards". I presume that's for tricking stock ECUs, correct? I don't need that junk?

I'm sure there is more I'm wondering and forgetting to ask, but I'll start with that and come back when I remember.

 

Yes, match the ECU to the chassis.  The PNP will be designed to work with your existing sensors, so the easy route is to follow standard 1.6 to 1.8 swap procedures and retain the 1.6 TB and coils.  However, as FM states in that guide,

All of this having been said, if you’re using our Hydra, you can run whatever sensors you want - in other words, you can use your 1.6 wiring harness and the 1.8 TPS / coils / whatever, if you’re willing to do some simple reprogramming and wiring.

Replace Hydra with Megasquirt and the same applies, the sky's the limit with sensors and you can run what you want as long as you (or your tuner) are comfortable making the changes.

The MSPNPPro comes with an on board MAP sensor so you can stop using the MAF, but you'll need to get a 3rd party IAT (GM is the popular one) and wire it in if you want to physically remove it, since I believe the IAT sensor is integrated into the MAF on NAs.

No need to mess with FMUs or any of that junk.

I used MSPNP for my MSM swap into a 90 Miata. 

Use the MS for your chassis unless you want to swap harnesses to use the newer sensors. Just use all the sensors from the original engine. 

Delete the AFM and run a vacuum line to the MS to use MAP. 

Put the IAT sensor in the piping before the throttle body, I used the sensor and bung from DIY Autotune and ran the wiring to the plug for the OEM AFM. 

I found a tune on miataturbo.net to get started and tweaked it from there.