Would the Accusative case of inaspectus be best in this sentences?

[Darklander]

Hade, Dis Pater, inaspecte, domine mi; obsecro te. Da mihi potestatem faciendi me inaspectum.
Hades, wealthy father, the unseen one, my lord; I implore you. Grant me the power of making myself unseen.
Hade, Dis Pater, inaspecte, domine mi; obsecro te. Da mihi potestatem faciendi alii inaspectos.
Hades, wealthy father, the unseen, my lord; I implore you. Grant me the power of granting the power of making others unseen.

 

[Araneus]

Perhaps better to say me ipsum (literally "me self", but understood as "myself") to make it clearer that you are doing this to yourself.

The plural masculine accusative of alius is alios.

 

[Darklander]

So I take it that I had inaspectum and inaspectos in the appropriate accusative case for each sentence.

 

[Pacifica]

Perhaps better to say me ipsum (literally "me self", but understood as "myself") to make it clearer that you are doing this to yourself.

It's already clear with me alone. I don't think any extra emphasis like ipsum is necessary here.

So I take it that I had inaspectum and inaspectos in the appropriate accusative case for each sentence.

Yes.