Integrating Saab (bosch LH) and VW knock sensing ignition

[crash70]

I'm a new guy here, so forgive my ignorance.

In an effort to provide myself with a low-cost fuel injection system, I am
attempting to fit an LH system from a 1986 Saab 900 2.1L 16v (non-turbo)
onto a 2.0 16v VW engine. I have a complete CIS-E setup, but I don't like
the restriction of the meter plate. Next to a MAP sensor, a hot-wire sensor
seems to be the least intrusive method of measuring an engine's incoming
air. Also, I plan to supercharge the engine later.

I have all the components necessary to build this system. I have obtained a
schematic of the fuel injection system, and came across one problem. I'm not
sure if I can use my VW knock-sensing ignition with the Saab ECU.

My main question is, will the pulse signal from the VW hall unit be
ineffective to my ECU? The Saab ignition uses a pulse amplifier.  According
to the schematic, the input signal ranges from 6.5 to 8v. I hope somebody
has some experience in this department to help me out.

Once I finish the harness, I plan to "bench test" the system by mounting the
hot wire sensor on my car (in-line with the CIS system) and installing the
coolant sensor and ignition (if it can be done--hopefully somebody will
advise me on this). Then, I'll check for proper injector duty cycle
operation with my DMM.

Once I get the system up and running, the parameters will be changed as
necessary on the EPROM. I'm assuming the parameters will be in the ballpark,
since the Saab engine is so close in displacement and volumetric effieciency
as the VW motor.

Any advice/comments/criticisms/thoughts/etc. are welcomed.

Thanks!

Chris Bishop