I have yet to place an order with PBR yet but have a list of things ready for the first order. Is US$101 postage a ballpark figure for a largish/heavy parcel?
That's for a package with Legs. Legs would be in a large and heavy box. It all depends on weight and size. They always pack the parts in a box that is the correct size, unlike some US suppliers that find a box 3 times the required size and then fill it with 5 kg of packing so they can charge you more !!
PBR are always fair with their shipping. Being you first order, you will know the shipping price as you pay the invoice before they send (only on the first order).