I don't understand why until today Alchemy has not been released in full, at least in audio.
When the Compact Disc Digital Audio standard emerged in 1980, it would have a duration of 74 minutes, and so it has lasted until today, a CD has a maximum capacity of 74 minutes, an LP has a maximum capacity of 30 minutes per side. The Alchemy concert in its entirety, with all 4 songs left out has a time of 1:56:20, it is clear that in this way, in all cases Alchemy could be released in its entirety, there is no excuse for that, not even in the 80's. I did a lot of research on this over time, a double lp has a capacity of 2:00:00 hours of recording, however, they released Alchemy on LP with 1:28:50, an experience hearing that does not last an hour and a half.
A double cd has a maximum capacity of 2:28:00 (74 min +74 min) and the official release of Alchemy is 1:33:59, (because they added the song Love Over Gold and a few more seconds on some tracks). So going back there, the full Alchemy show experience is 1:56:20, (with Industrial, LOG, Twisting by The Pool and Portobello Bello), would fit on LP, CD, VHS, DVD, Blu-ray. .
It was never released because initially Mark Knopfler for some reason didn't like it, or didn't think enough the tracks that were left out, that at the time (1984)? The second hypothesis is more evident, pure disregard for their own history, memory and the band's fans, that's all. They gave us a maximum of 1:33:59 of something that had 1:56:20, they keep in a schizophrenic way little more than 23 minutes of experience of 4 wonderful songs that could close the cycle of a real concert experience from the LOG tour have been doing this for 38 years.