Bought Saira, like to download it again

So, I bought Saira back when it came out and played through it. Now I've updated computers and no longer have the file, and unfortunately I no longer have the full version key either. I was wondering if there was some way for me to get the full version without paying for it again. I totally understand if it's not possible and if I asked this in the wrong place but I'd really like to play it again. I just feel wasteful paying again just so I can play a game I've already finished.

That should be no problem. Drop me a message here and I'll send you the information in a mail. If you provide the e-mail address or name, I can get you the old serial back.