In theory yes,
It couldn’t hurt to show them your invoice and that it was paid in full, not financed. (that applies to any upgrades that you have done)
However,
If you paid $30K for the system, you cannot assume that it will add $30K to your value.
If you disagree with a completed appraisal(for any reason), there is a dispute process which is sometimes successful, sometimes not.
A successful dispute means that the appraiser has to admit that they did a poor job and made a mistake.
