Any D series manifold will fit any D series head. You say it's from a Del Sol, but you need to know what turbo it's flanged for in order to choose a turbo that will bolt up to it. It sounds like the manifold, charge piping, and DP are out of an SOHC GReddy kit, which means the manifold is flanged for a Mitsu TD04. The charge piping should work, for the most part. You may need to tweak it here and there since it's laid out for a Del Sol engine bay. Whether or not the downpipe will work depends on the turbo you're using. Although the GReddy kits use mitsu turbos, I don't think any of the other mitsu turbos will bolt onto their manifolds, so I don't think an Eclipse TD05 would bolt up. The Eclipse turbos also have a different O2 housing/downpipe bolt pattern, so if your dp is out of an SOHC GReddy kit like I suspect it is, it's not going to bolt up to an Eclipse TD05 either. If you don't have IC piping, then that is something you'll need to fab up using exhaust mandrel bends and silicone connectors(or welds). As for a DSM IC, it depends on which one you're getting. If you're getting a side-mount IC, you'll need to route your charge piping creatively to get to its inlet and outlet. If you're getting a Starion fmic, you'll need to cut the inlet and outlet off and reweld them to that they're on the ends of the IC, so you can run your IC piping around to the front of the car, thru the IC, and back around the other side in order to get around your AC. A TD05 should have much lag, but that's a subjective statement. It shouldn't run out steam until about 15-18psi or so, but you shouldn't have to worry about that on stock internals. As for the fuel system, the simplest(probably cheapest too) way to get a sufficient setup that will enable you to run up to 8lbs of boost safely is to use your stock injectors, a 12:1 Vortech FMU, and an inline fuel pump. Forget about the GReddy box, it's garbage, just get a Missing Link or use fish tank check valves. An oil feed line is a necessity, so I don't understand why it's something you're "considering" to buy. I'm not sure what you mean by "fuel pressure sensor", but if you mean an FP gauge, it wouldn't hurt to have one. Heat shields and thermo wrap wouldn't hurt, neither would a turbo timer, although if you can stand sitting in the car for about a minute to let it idle down, you can save yourself $80-100. As for gauges, boost is a necessity, a/f(if you mean an Autometer or similar unit) looks nice and will tell you if you're running horribly lean, but is otherwise garbage for tuning, EGT is useful for tuning and certainly better than any A/F ratio meter that runs off the stock O2 sensor. If you want an A/F meter that will actually serve more of a purpose, look into a GReddy A/F, which comes with its own semi-wideband O2 and displays A/F ratio directly instead of a bunch of dancing lights.