Hope this all helps, if you have any questions feel free to message me. 

Especially for STR, you could literally put a sofa bed in the living room and accommodate extra guests (before you all scream, this is fairly common even in high end STRs and I've never heard of complaints, but feel free to cite other experiences).

If you feel your assessment is too high, you have the right to contest it.

You kind of have to get a feel of that environment.

Also, I see that you're in Columbia, but if you feel like making the ride down to Charleston, REI Central is tomorrow night and would be well worth your time.

Feel free to connect to directly discuss as well.Cheers!

Quote from @Martin Brown: It's totally normal to feel cautious about sharing your building plans, especially when cost and competition are involved.

Feel free to reach out. 

Then years later forget about it leading to you or lender spiking your escrow charge for a year costing you a couple thousand then you ask why and it's because of that then you redeem it after feeling the burn. 

If you have "high-end" units where you feel a disposal is a MUST for your prospective tenants then perhaps it is worth it.One way to keep the costs down is to inform the tenant that if they jamb the disposal or if a foreign object is found at time of service then they will eat the cost.