Hello Fly,
what you are looking for is Ayahuaska. This is the brew, containing Spice and a MAO-Inhibitor to make it orally active.
5 G Mimosa is definitely not enough for 2 People. (Mimosa contains around 0.5% nn-DMT, what gives you 25mg in 5G). For the Ayahuaska to reach the full effects you would need around 100mg per person. If you extract the MAOI and the nn-DMT this is called Pharmahuaska
Get some more Mimosa and a MAOI like the Syrian Rue. Be Careful with the use of MAOIs because there can be severe interactions with Medications and some Foods. So please read some more before using any MAOI.
Greetings