And in spite of all those detailed explainations - you sill want to go ahead anyway?

I`m going to completely agree that its not only unsafe - if your headset is shot and only the races need replacing - thats usually only 45 in parts taxes included is you have a low end road bike or are stuck for money and just need a temporary fix.

But its your bike and if eventually things get out of hand and you have to take it to your LBS after those `mods`, I`m sure they`ll be happy to help you out. Happens all the time! Just costs a lot more to undo the additional damage than it would have if you brought it in in the first place!