Be careful with eBay sellers selling them that cheep. Get the shipping cost up front. They're probably making a killing on the shipping to make up for the low price on the tank.

Also pick a seller that's close by. That will reduce the chance of damage from shipping. I think I bought the tank for my convertible from NPD or Paddock. $120ish + shipping kept it under $150.

No welding required when changing a fuel tank. You may have to cut the old straps if you can't unbolt them.