Really looking and need desperately for 372xp intake sleeves PN 503 43 18-01. I need at least 3 but would take up to 5. They are the ones that go into the intake boot prior to installing carburetor. Any of those would be greatly appreciated. Also, could use some of those little red insert that go into the carb before installing bolts. PN 503 70 11-01. Any help would be greatly appreciated