Are there scapes growing!? If so, wait until the bulbs have bloomed to attempt this? If not... Proceed with caution!

I'd be tempted to carefully unpot and get rid of the spider plant. Put the SP in a hanging basket and then look at the amaryllis. You could determine if you have a mother bulb and offsets or maybe 4 separate bulbs. After time my bulbs pull themselves down a it, but these necks look a little close to the soil's surface to me. Since they are actively growing and won't be dormant for another year, you could clear some soil off the surface, and add fresh material to the bottom if the pot. Just make sure there's good drainage!

Enjoy your nice gift!
K

One of the problem is that it's a tall pot! Here it is next to a 4inch pot echeveria. I am really hoping the it will send a scape so I can see what color the blooms are. The lady that gave me this said it came from a greenhouse that grew rare and exotic plants that had a greenhouse fire. So that explains why there was nothing in the pot at first, got burnt down or withered away from the Heat of the flames.
Grantgarden2

They will probably be fine for a season. Nice pot!
They look like they could be blooming size. Now you have to be patient to see what it is/they are!
K

I hope you'll post photos if it blooms! The mystery is kind of fun!

i had 3 bulbs in a large wide and shallow clay pot planted with small spider plant seedlings - like grass, all around the pot.
it looked very cute - the spiders grew a bit but not enough to choke the bulbs. in the fall when i brought them in and bare-rooted i pulled the spiders out and replanted separately.
i think it's quite OK for one season.