I feel the Xiamoi Hybrids have a very decent soundstage in both depth and width. They are only $25 and are a great budget IEM as you'll find discussed in this thread. I go to them before a lot of my $100-200 sets. the Fiio EX 1s are an excellent set, but there are better cheaper.
The Havi's are very hard to drive to get them sounding at their best and i find their soundstage although very wide, lacks depth.
Maybe try get the RHA M750 used on Amazon or eBay. They have a huge soundstage. You get a set regularly popping up around the $80 mark. A lot of them are just open box and guys not liking the sound or fit.
I have the Trinity Audio Deltas, so if the others are saying the Vyrus has a good soundstage then i'd trust their word cos the deltas are excellent and the Trinity A team offer second to none customer service!