Would A Big 3 Spot Get On With Red Tail Shark?

[fishnovice]

I have been asked to rehome a re tail shark and don't know much about them. The only place he can go is
1. Cichlid tank with jewels sex cons, but they will probably kill him
2. Almost empty tank with large male gourami,actually a 3 spot but orange red in colour. Gourami is a real bully who bullied other gourami (nor sure if they died of stress but they were old, probably stress finished off old gourami). Also tried to kill 4 paradise fish I added in error, had to remove them after 15 mins.

Willl shark attack gourami or vice versa or will they be OK?
If they fight I have no other spare tank to separate them.

 

[KittyKat]

They should be ok together, altho they might pick on each other a bit. Have you got places for both of them to hide?

 

[fishnovice]

They should be ok together, altho they might pick on each other a bit. Have you got places for both of them to hide?

There is a cave and bogwood and I can add rocks and plants.
How do I introduce the shark, some loaches and maybe tetra to the gourami tank? Should I remove gourami, rearrange tank and then add all fish together OR just float the newcomers in bags as usual?The gourami is used to having a tank to himself and has been a bully in the past.