There is no spoofing for the PS Vita. Only chance you have at spoofing your PS Vita is to get it modded. If you need the site name where all they talk about is PS Vita modding, PM me. I’m in the PSP / PS Vita hacking scene as well.
I had to replace mine as well and they wanted $149 for the replacement. Instead, I looked on ebay and snatched up a white PS Vita that wasn’t used much for the price of $169.