skunk2(as most aftermarket TB's do) elimanates the coolant lines for the throttle body(keeping it cooler making more power)
if you keep the coolant lines on the IACV just run a hose from where the throttle body gets coolant then run it to IACV(i think its the small port on the IM....personally I don't even run coolant to either the throttle body or IACV)its hard to explain but just run coolant to the IACV
for the map what u did is fine or get a newer style map the stock map harness should reach it
you can use long 10mm bolts or the studs for the fuel rail just make sure you still use the spacers from the stock IM