(1) We learn that a blind person can not do Semicha. One of the ways we learn this is comparing to the Sanhedrin, where a blind person could not be on the Sanhedrin. Being that blindness is a Muum. I was once told by somebody that wearing eyeglasses is a Muum for a Cohen doing the Avodah in the Beis Hamekdash. Would not our gemarah prove this wrong. Our Gemarah only talks of someone who is blind, can not do Semicha, it does not mention someone who is hard of seeing. It would seem that someone who wore glasses could be on the Sanhedrin, and therefore not be called a Muum. Saving many Cohanim from going thru with expensive laser surgery for their eyes. ????
(2) You can not give a Korban knowing that you will not do Semicha. The Aruch Hashulcan Haatid ( Kodshem 68,8 ) states that you can not send your Korban with someone going to the Beis Hamikdash for you, since he can not do Semicha for you. However this should only apply to Male Jews who have the ability to do Semicha.
My question is, would there be anything wrong with setting up an internet site so that Goyim and Women could send a Korban to the Beit Hamikdash on their behalf ( of course, taking a commision ) , G-d willing that the The Bayit will be rebuilt quickly ???
(1) There is no proof from our Gemara that your friend is incorrect. The criteria for Semichah stated in our Mishnah is clearly not as stringent as the criteria to be on Sanhedrin. The Chidushim u'Bi'urim points this out by saying that it is clear that someone who does not have children and is therefore not eligible to be on the Sanhedrin (see Sanhedrin 36b) will still be able to do Semichah. It must be, the Chidushim u'Bi'urim maintains, that only a Mum of Sanhedrin which interferes with Semichah is learned from Sanhedrin. Therefore, it could be that your friend is still correct, as this does not interfere with a person's performing Semichah.
(2) Without giving a Haskamah, it doesn't sound problematic to me according to the letter of the law. Of course, the site would have to be constructed in a way which incorporates proper Yir'as Shamayim and Mora Mikdash.
Hatzlacha,
Yaakov Montrose