MIL will come on without a 4L60E hooked up. Some performance may be lost as engine parameters cant be well defined enough without feedback from the trans as to which gear is engaged at any time.
If you want to run the PCM for the 93 and not the 7747 , just have The chip modded to run without a trans gear feedback. The PCM has an input for the gear selector that the PCM uses in its algorythms(along with throttle inclination,RPM , current gear ratio feedback from trans and other data) to partially calculate timing. Like I said , some performance can be lost.
The speed sensor for the 4L60E should be fit the 700.
For torque conveter lockup go to PATC and get a vacuum switch to wire in for the TCC solenoid. Feed it from the brake like switch- Normally closed terminal, so when brakes are applied, power is cut- converter unlocks-independent of the engine vacuum switch for TCC.IIRC the 700 has a 4th gear switch you can hook in series with Brake and Vac switches to keep lockup off untill 4th gear and cruise vacuum is achieved.
Fact is stranger than Fiction