Sorry, again I'm too stupid (or just lazy, who knows) to figure out how to make GUIs for the VST plug-ins, so I can't give you meters right now. But I may, however, find a way to add a GUI one day
Regarding the limiter, you could (but that doesn't give too good results) try to set DVC on ratio=inf:1, look-ahead=0.2ms, attack 0.1ms, and set the output to your desired ceiling level. Then you can fudge with the release to get the sound you want (around 20 to 200ms some times gives good results to me, depending on the type of material).