Maybe there is a possibility to upgrade the 1.14 version of this mod to v2 with dynamic item models.

• The implementation of the new model system from 1.15 was backported in Forge 1.14.4-28.2.2
• There was another backport of a multi-layer model in 1.14.4-28.2.17
• There was a bug fix for buckets in 1.14.4-28.2.11