The melting point of the red solid does not match that of dehydrobufotenine or bufotenine. The MP is 110-120. B=146-150; Dehydro= 199-218

The B is def changing as the TLC shows a compound with a slightly lower Rf value than B. (Chloroform:MeOH:NH4OH) (2:5:.01)

This compound is psychoactive but for SWIM it was similar in effects to B maybe slightly more potent (weight for weight) but lasted much longer 30 minutes whereas B lasts 10 minutes or so for SWIM (10mg freebased).

How many other 5X-DMT's could there be, that are plausible candidate's?

It is very likely Calcium Bufotenine (This would explain the lower Rf value on TLC). This process is very similar to how the natives prepare their snuffs which are known to contain calcium bufotenine.