you know the little timing belt cover? yea, thats there for a reason, i dunno about you but its not really a great idea to have dirt and shit going by the most important belt keeping mr psiton from ass ramming mr valve...
but whatever floats your boat... i would prefer a QUALITY belt as opposed to a red one...
keeping your honda parked to take your time gets an A+ from me, smart thinking there
and yes, there will be wiring issues after you have the P28...
just so you know, you have three choices for fuel and vtec managment...
the first would be a vtec controller, prob the cheapest solution to your problem, but you should still need to upgrade to MPFI if your car is not equiped, and you should run an SI ecu along with the vtec controller... just my opinion
your second option is to get a pr3 or pw0, these are both OBD0 vtec enabled ecu's but they are strictly jdm and will run you about 350 last time i checked...
to run this ecu you would only need to convert to MPFI if needed, and then run your vtec wires and such... OBD0 injectors and distributors would be needed...
your third option and probably the most reliable, or closest to stock would be the OBD0->OBD1 converter, running a P28 ecu, with OBD1 engine electronics such as injectors and distributor, you will also need to run the various wires for vtec and such...
you need to think of it this way, your car didn;t have vtec, it was never even equipped with the wires for it, so you need to make your cars wiring resemble the wiring of a 92-95 civic's with vtec...
pinouts and wire diagrams will help you a lot, just see whats diffrent between the two diagrams and you'll see what wires you need to change or add...
again, i would advise you look into the costs of this project, a mini me should net you about 130 horses, i have heard as much as 135 perhaps...
and for this increase you need a vtec head, injectors, dist, intake mani, whole head gasket set, timing belt, water pump since its apart, conversion harness, ecu, and wiring... all this to reach 135...
a twin cam zc, or a twin cam D16A8 or D16A9 has 140 horse i think... in stock form... this swap might end up being cheaper in the long run...
check your options and figure HP vs cost...
unless you are a vtec junkie and just need that Z6 head...