Hi guys going to look at a 89 venture that has 11k miles and had been sitting for 20 years!!! the guy says he flushed the brakes, put in some clutch fluid, put in new battery and bottle of seafoam and shes running good. What should i be looking for when i go to see the bike? 20 years of sitting is a long time and i feel this bike may need a lot of maintenance like replacing all rubber hoses . He says no leaks and it will obviously need new rubber... thoughts?