I've been looking at the Hi-Point also, BIL has one and it's a good plinker. They do come in 40 S&W but ONLY take Hi-Point 10 round mags. No other mag will fit. Pro-Mag makes a 15 round mag but from what I hear they don't work. I think your friend was getting mixed up with the Kel-Tec Sub 2000. It's available in several differen mag options including Glock and Sig. I'm still trying to decide, the Kel-Tec is about $100-$150 more but can take high capacity readily available mags and, it folds up compact for storage.
There is a cammo stock option that runs about $200 or the solid black is about $175. I was at the Tulsa gun show and only saw one. Dealer was asking $250 for it and I almost laughed out loud. I just got a flyer from SOG, they have them for $139.99 plus shipping, then transfer fee would make it about $175.