If money is an issue then yes, go with StrokedTater. You'll send in your swingarm and he'll extend it to whatever length you desire.
Tarmo's T-ROCK Swingarm is one sick motherfucker as you can see in awks thread. Its thick and the welds look amazing. Damn thing's probably bulletproof. But like little3mil said, it is quite expensive. BUT you also have to take into consideration,
i extend swingarms and also can do a longtravel version that gets almost 11" of rear suspension travel when fitted with a 400ex rear shock. my prices vary depending on what you want and what material i use. i stand behind all my swingarms, PM me for an exact quote.
And then you have tater's guarantee behind his work.
If all new materials is your preference, you've got one choice. If price is your underlying concern, you've got the other. many choices to choose from.