Thinking of a Glock 19 gen5 and an S&W SD40

Thinking about the Glock 19 gen 5, the S&W SD40, and a 9mm barrel for the SD40. <br><br>I've already got an M&P body kit for the Glock so I can go with an M&P 9C slide and S15 mags. But I like the idea of mixing things up with the SD40 in .40 and 9mm. <br><br>It's just a bit too much money at the moment, but I'm thinking about these 2 guns a lot. <br><br>Thoughts?