Iki Piki's splanch

EDIT: Just realized that if I'd read all the way to the bottom, my scenario (b) is the same as described by the last bullet-point list on the page. One splanch, travelling back in time twice, resulting in a period of time where the same splanch exists in three different locations.

David Morgan-Mar is an Australian physicist who does a comic called Irregular Webcomic, with good reason. The graphics are mostly done by taking photos of Lego minifigs or tabletop game miniatures. It's updated more or less daily, which makes it one of the most regular webcomics in terms of timing. The "irregular" bits are his truly loopy sense of humour and the several totally unrelated storylines alternating with one another at will.

One of the storylines involves a couple of incompetents called Iki Piki and Serron, gambling on sports, and illegal organ trafficking. At this point it's so mixed up that the transmigrations of their organs have become a talking point on the IW forums. Click here and scroll down for the discussion.

The issue that's being discussed goes sort of like this:

1. Iki Piki and Serron end up in jail and have their organs forcibly removed.
2. While in jail, they meet their future selves who have travelled back in time, and these future selves also have their organs removed.
3. The "first" IP & S are dumped in an alleyway to die, but they find a set of organs that conveniently match their species and blood types in a suitcase.
4. Later Iki Piki steals a second set of organs, so now they have extras.
5. They travel back in time...goto 2.
6. They now have one set since they acquired the extras at step 4.

The discussion center around how you get THREE sets of organs in the jail cell at step 2, while there are only two sets of Iki Pikis and Serrons. Several people assumed that organs were going around in an infinite loop.

I think I've got it. You either have
a) one splanch that was "born" with Iki Piki and travels back in time ONCE, and another splanch that exists in a closed loop which probably wouldn't work since the organs would become infinitely old; or
b) one splanch that travels back in time TWICE.

You get b) if the set of organs that's removed from the future Iki Piki and Serron are the ones that were originally removed from the earlier Iki Piki and Serron. The future-IP&S-who-traveled-back retain a set of organs that has traveled back twice, removing these from further loops.

If the set of organs that they RETAIN are the original set, the other set which is retrieved and removed must be floating around forever.

Order of organ retrieval (i.e. which one is the set they find in the alley which saves them from death, or the "extras" IP steals later) does not matter.

And why am I analysing webcomics past 1 am...