Overheating -- Corrective measure questions.

Use a thinner fan spacer and shorter bolts. Simple. For the hose, go to whatever local parts store you use and ask to go behind the counter and look for a molded hose that matches what you have. They'll let you do it unless they don't want your business anymore. lol
If its like my parts store, they have 2 hoses. For some reason rad hoses dont fail like they used to.