Bonytony, the earlier hints on that one gave me the answer - Pieceps, I supposes it's a joky Viz type reference to having a spare tyre? As mentioned earlier, Piece, bit and PS, added bit to a letter.
LOI 10a - a guess and a Google brought a smile - another new one on me. A Godsend name for Viz! Now also my COD.
Also liked 8 for confirming the other 3.