here's my dilema...i just found out i have a small crack in one of my rims. i don't have the money to drop on a new set of rims and tires. i found a guy that has a set of rims from his 98 a4 quattro. will they fit my 99 a6 avant quattro? his rims are 16inch and he is upgrading. anybody know if these will fit for them time being?