Once you figure out what BCD you need, you can just get a new chainring. Search for BCD here and try a search of sheldonbrown.com for BCD, there should be a way to measure the hole spacing. I have a guide that came with a bash guard which lets you easily determine the spacing. Then just order a new chainring and adjust your front derailer up a bit. The whole process is quite easily done by anyone who works on bikes.