Would it be possible to boil 10g chacruna leaf and make it into 1gram of 10x chacruna like caapi leaf? If so would you be able to make changa with it?

It is recommended to freebase alkaloids that will be use for smoking. While it does work in some cases, generally smoking alkaloid salts (which is their natural form in the plant) will be innefective, harsh or plain irritating/toxic.

If you want a crude changa you could make paste of chacruna with some sodium carbonate or calcium hydroxide, let dry, and pull with non-denatured ethanol, IPA or acetone. Then evap that onto some herbs for changa/infused leaf.