Hmm, that's a very informative link there and it makes a good case; however, don't let it scare you off of good quality TIG welded frames. If you're looking for cheap but reliable it seems that tons of people love the Kilo TT/Windsor Hour, as for getting a frame for a conversion the thing you need is a dropout that will allow you to tension the chain by moving the wheel (there are other ways around this but I don't like them) i.e. something with horizontal dropouts or track fork ends. If you don't know what those terms mean just google them and click on images and you will be availed with great knowledge. Also keep in mind that there are two different spacings for your rear wheel, either will work fine but keep that in mind when you buy/build/get a hold of a rear wheel.