Difficulties in parts search?

Parts list

Difficulties in parts search?

	Description	OEM Part #	Price
12000	12000 MR385825 MANIFOLD, EXHAUST	MR385825	US $496.50
12010	12010 MR373736 GASKET, EXHAUST MANIFOLD	MR373736	US $39.22
12010	12010 MR431737 GASKET, EXHAUST MANIFOLD	MR431737	from US $14.02
12088	12088 MD041192 WASHER, EXHAUST MANIFOLD Plain,8	MD041192	from US $1.72
12088P	12088P MD050076 WASHER, EXHAUST MANIFOLD Plain,10	MD050076	from US $1.25
12089	12089 MR188046 STUD, EXHAUST MANIFOLD 10x33.4	MR188046	from US $1.81
12096	12096 MR212302 NUT, EXHAUST MANIFOLD Flange,8	MR212302	from US $1.33
12096P	12096P MR224500 NUT, EXHAUST MANIFOLD Flange,10	MR224500	from US $1.54
15 510	Exhaust pipe & muffler 15 510

Exhaust manifold (ALL (MANIFOLD)) Diagram Mitsubishi RVR Japan 7945683-631744