That picture dont look like its from an rst, the wastegate penny is located in the removable cast that the downpipe bolts onto, which dont involve sending the turbo off as that will cost you a packet, but you will most probably need to use oxy blow torch to heat up the nuts as they will most defo break the studs if you try to remove the wategate housing without heat. if you need a new wategate cast i got 2 here PM me if your interested