I can't say what would sound better in your room. Only you can decide that. Stands can be had for really cheap if you're not extremely picky about what they look like. You could also look into something like the Ascend CMT-340's, the CMT center (puts you at roughly $800 for the front 3) and then either find some decent stands for $50-100 OR see if Ascend will work with you on their stands for the CMT sets. I believe they had just sold the CMT's with free stands not too long ago...maybe they'll cut you a deal if you buy those and the center at the same time.
Spend the extra $400ish on another vtf-1 or sell your vtf-1 and pick up a solid $700-800 sub like the Outlaw lfm-1ex, svs pb12nsd, etc.
I've never hard the KEF q series so don't take this as me saying they're not worth it. I'm sure they are, but with you being 99% HT you'll be missing quite a bit of that lower end that really makes HT fun. Unless of course you're already happy with the sub and it's enough for you (in which your answer and everyone's answer should be NEVER ENOUGH SUB! lol)