RAW, can Mordekainen’s Magnificent Mansion create components for activities/spells?

Suppose I wanted to repair a simulacrum.

Am I able to cast magnificent mansion and furnish it such that the materials required to repair the simulacrum are inside the mansion, thus circumventing the cost of repairing the simulacrum?

Magnificent mansion is worded as follows:

You can create any floor plan you like, but the space can’t exceed 50 cubes, each cube being 10 feet on each side. The place is furnished and decorated as you choose.

Simulacrum repairs are worded as follows:

If the simulacrum is damaged, you can repair it in an alchemical laboratory, using rare herbs and minerals worth 100 gp per hit point it regains.

I would like to:

  • Have a greenhouse in the mansion furnished with the rare herbs that I require,
  • Have a small mine or mineral vein in the mansion furnished with the rare minerals that I require,
  • Have a tool closet in the mansion furnished with the tools that I would need to harvest the aforementioned rare materials, and
  • Have some sort of workshop/alchemical laboratory that I can use to perform the repairs?

As a follow-up question, suppose I wanted to cast a spell with expensive material components such as gate, which requires a diamond worth 5,000 gp. Is the mansion able to be created with the diamond already inside so that the caster can simply cast magnificent mansion, go inside and then cast gate or whatever expensive spell I want?