Dog Ramp (Haringey N15 3)

Hello everyone :)
I’m looking to build a simple dog ramp to attach to my bed for my little elderly dog. I’m looking for some materials like metal hooks, wooden plank, smaller wooden pieces and possibly a small clean carpet cut out .
If you have any you think may be suitable and you don’t use, I would love to collect them please :)

Or if you have an already made ramp like the last picture or similar ;)
Thank you.