Trekassy 700lbs 40 Inch Saucer Tree Swing for Kids Adults Outdoor with LED Lights, 2 Tree Hanging Straps Rainbow

Hi! Any suggestions on how to get the last pipe section in? There are about two inches of overlap.

How many pieces does the frame come in?

Does this led saucer come with two locking carabiners hooks or do you have to buy separately? this is not listed in the writeup.

Can this be attached to a swim set top pole instead of a tree?