Lost my extra X-Mas Kilo. So back under the magic 80, but want to move towards the 76 for summer.

Been wondering if I should get a dip station / gym tower. One of these things that allows for pullups, dips, leg raises etc. I did read that leg raises might cause hernias when done improperly, which worries me a bit. I'd appreciate the increased exercise possibilities but I sure don't want to hurt myself.