I have P5 lights in one of my MSPs. Here are instructions, that's how I did it and it works fine a year later. Low beams stay on with the highs as well.
Picked up a ZE intake cam and corksport exhaust cam today for $240, may get some adjustable cam gears before I install them. Parts are piling up, need to start installing them.
Got some new tires as well, a coworker is moving and is getting rid of stuff. Had an almost new set of 215/45-17 BFG rain-racing tires from CJ wilson racing's NC miata race cars. They say 'for racing use only' on the sidewall, they are basically soft racing compound tires with a tread pattern molded in them. Going to put them on the BBSs and maybe repaint them before I install them. The car will need an alignment as well, and am considering getting some trailing arms and lateral links before I do that.