Is this the Center speakers -
http://www.dali-speakers.com/en-US/Loudspeakers-1/EPICON-VOKAL.aspx#.Vjq4hIKVvF8
Dimensions With Base (HxWxD) [mm]: 247 x 816 x 349 (9.73" x 32.125" x 13.5")
I say, at least check into having a stand custom made, perhaps of wood or metal.
Most town have a carpenter or cabinet maker that would be able to do it.
If you live in a town that has a Technical College, they might have some Students looking for a project to build.
I suspect, you will find that if you can find a true Center Stand, it is not going to be adequate for a speaker 32" wide.
Here are some run of the mill Center Stands, but they are only about 15" wide, so even then you would need two of them.
http://www.parts-express.com/sanus-sfc18b-foundations-18-center-channel-speaker-stand--240-808
http://www.parts-express.com/sanus-sfc22b-foundations-22-center-channel-speaker-stand--240-810
http://www.parts-express.com/sanus-nfc18b-natural-18-stand-center-channel-black--240-8826
http://www.parts-express.com/sanus-nfc18c-natural-18-stand-center-channel-cherry-black--240-8828
These are just variation of the same Center stand.
Alternately, you could look at other manufacturers who make large Center Speaker and see if they have large Center Stands - B&W, Monitor Audio, Wharfedale Jade, .... -
http://www.soundacademy.co.uk/shop/monitor-audio-pl350-centre-speaker-stand/
http://www.engadget.com/2008/08/11/cepro-details-monitor-audio-plc150-compact-center-channel-spea/
http://www.monitoraudio.web.tr/?new...eb.tr/?newUrun=1&Id=502694&CatId=bs335826&Fstate=&/Monitor-Audio-GX-C350-Center
But in all honesty, I think the solution is to have some custom designed and built.
Most of the Center Speaker Stands I am finding all appear to be much too small for your needs.
Most of the good stands are custom made. Here are some examples -
https://www.google.com/search?safe=....1866.0.3312.1.1.0.0.0.0.195.195.0j1.1.0....0...1ac.2.64.img..1.0.0.vuHD5bgQeH8
If you want a slight angle to the Center, that can be built in to your requirements.
Actually here is one from Paradigm that might work for you -
http://www.paradigm.com/products-current/collection=classic/model=j-18c/page=overview
But it is still two separate columns.
And perhaps this one -
http://www.affordablehomeelectronic...ucts/WOOD-TECHNOLOGY---MU-C---MU-Series-Metal-Center-Channel-Speaker-Stand.HTML
If you don't mind not shopping local, then search
Google for
Custom Made Speaker Stands and you should come up with some options -
http://www.timbernation.com/speakerstand.cfm
http://www.ebay.com/bhp/wood-speaker-stands
This Ebay list might not have what you need, but they custom build. Just contact them and get an estimate.
http://www.aandmcustomsteelspeakerstands.com/
http://soundanchors.com/products/hi-fi-home-theater
http://resonantwoods.com/audio-products/speaker-stands/
http://www.skylanstands.com/index.htm
http://www.standmanstands.com/custom-stands.html
http://kylevanderburg.com/projects/custom-bookshelves-speaker-stands/
Though probably better to find a local Cabinet maker so the two of you can coordinate the design.
Just a thought.
Steve/bluewizard