hey hey & welcome I have an AE102, 1995 model. As far as the paint goes, that is easy- yeah, I believe (just based on what I have seen) the toyotas of this era (then again commodores and falcons arent immune by all means) do show their age when not very well looked after. This can be restored. Things like faded paint, and tree sap need to be agressively treated- using things like paint cutters (like cut and polish). Applying by hand has mixed results. I know myself if I hand cut a car, it not only takes a full day non stop work from dawn till dusk and then some to do it properly, even then its not as good as a machine applied job. I am aware that meguires and others do produce these palm polisher things, which people with them do recommend (I think worth around $250?). Please, dont go looking at the cheap orbital polishers available at supercheap- they really arent worth the money. I got myself a decent rotary buff and pads for around $200, but you do need to be very careful with these. You can also visit a detailer, who can cut and wax your paint work for (last time I looked) around $100. After that, its just a case of maintaining the finish, which is a lot easier than restoring. As far as the vibrations go- sorry, I really cant help you there. Exhaust issue? I really wouldnt think so. You've got me stumped on that one....