With the included TL-D14 an TL-C12 fan, the weight is 1310g. It's possible to mount up to three 140mm fans on the heatsink. Pricing and availability is unknown.
Featuring a dual fin-stack design, the Frost Spirit features dense fin-stacks, in which the fins bunch up toward the center, creating turbulence and increasing heat-dissipation to the medium (air-flow). The fin-stack gets slimmer toward the base, adding clearance for your motherboard's memory and CPU VRM areas. Four 8 mm-thick nickel-plated copper heat pipes pull heat from the mirror-finish nickel-plated copper base, spreading it across the fin-stacks. Both stacks are capped off by metal top-plates.
Source: TechPowerUp