3Dchief
70cc twin V2
Yep, they would waste a lot of time on that lock, but with a cut-off wheel they can just cut the handle or the rivet in 15 seconds and get right in. You are on the right track, it's all about making it inconvenient for them, but if they are determined they will get in. The weaker link is the hitch lock, if they can cut that off easily, they can tow it away and then take their time getting in.