That looks like a pretty good deal considering that they include the heater tubes and the swirl tank. r.d. also sells transfer tubes for S2s and TCs in stainless steel. They don't list a price except to say that the S2 versions are expensive to ship due to their length while the TC version is less. Richard also sells transfer tubes for S2 and TC for £158.70 plus shipping.
I just thought if people were interested, knowing more options was better.