Updated January 19th. 

I currently have these to trade:
  - Blueprints: Astrologist (lvl 4)
  - Money Tree Sapling (x8)
  - Nightcat (x6)
  - Spirit in a Jar
  - Ancient Horn (x2)

Am looking for some other portal stuff in trade:
  - Blueprints: Stable (lvl 5)
  - Blueprints: Warehouse (lvl 6)

Will trade any six for either blueprint.
Might also consider trades for Rainbow Jars or Mutagens.