How to re-connect kitchen sink PVC pipes?

[TestNameHello]

Hi, removed a insinkerator and need to re-connect the PVC pipes again. 
Connected a sink waste basket and a S&P Trap 50mm. The other PVC pipe I think is 40mm.

Any ideas what to do next?

[MitchellMc]

Welcome to the Bunnings Workshop community @TestNameHello. It's great to have you join us, and many thanks for your question connecting a sink waste.

This is considered plumbing work, so it requires a registered plumber to complete it. I suspect they'll only run with one trap and not two. You appear to have a trap at the rear already. It would likely be best to mimic the other side and run a P-style sink trap directly under the waste outlet. The plumber would then use the same fittings as the right-hand side to connect to the back of the cabinet and the available waste pipe.

Please let me know if you have any questions.

Mitchell