so after irreparably bending the rear axle on my old road bike and snapping a few spokes, i decided to convert it to a fixed gear, as I had intended to build one anyway this seemed like a good excuse to get on with it. After some thought I decided to jsut purchase an already built wheel from the lbs as i had some free cash. So i brought the bike in picked up a nice wheel, cog and lockring, and the guy asks me if I wanted him to put it together for me, said he would do it for free, so i said sure, it would save me some time. I asked him if the chainline would be fine, and he told me a little disgustedly that it would be. So after i get it home i take the first look at my chainline and it sucks. It must be a good inch and half off, with the chainring way outside the cog. Now im left wondering exactly what i should do to fix it. The original cranks are on, with two chainrings and i think i might be able to replace, or ive read some places its not that hard to take the small one off and move the big one in. Also it seems like it shouldn't be to hard to get some spacers and move the cog out. But i dont really know much of anything about fixed gears and Im still angry at dropping off a load a cash on what I thought would be a perfectly working bike, and don't want to spend any unnecessary money. So if someone could recommend the best, easiest, and cheapest to correct the line and save me days of muddling through poor corrections I would be so grateful.