I believe you posted on the Morelia forum. I know of one American Morelia breeder who uses bioactive substrate but for whatever reason does not discuss it publicly. He has gone years without completely breaking down his cages. I won't speak for him beyond that, however.
If you're interested I would at least start with De Vosjoli's book "The Art of Keeping Snakes". Maybe buy a cheap Crested Gecko or a smaller arboreal snake and give it a try.
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Currently keeping:
6.10 Gonyosoma oxycephalum (Javan, mixed colors)
0.0.4 Rhynchophis boulengeri
1.1 Philodryas baroni
1.1 Lampropeltis triangulum multistriata
0.0.1 Rhamphiophis rubropunctatus
0.0.2 Morelia viridis (Aru & Merauke locale types)
1.0 Rhodesian Ridgeback