We have setup a demo online and close to finish it today.
The demo is at
http://demo.coinsofts.com:3000/ We currently use same UI as bitdoubler.org because we are sure if you build your own, you will change the UI.
More technical details:Client side is made with AngularJS/Bootstrap so it is both desktop and mobile friendly.
Server side is made with NodeJS/MongoDB so it is light-weighted and fast.
For price:We sell it at 1btc including
1) full source codes (angularjs/bootstrap/nodejs/mongdb);
2) setup for you for free;
3) free 2 extra hours supporting.
As asked by some guys for lower price, we now accept .5 BTC for just 1), if you need both 2) and 3), we have to ask for 1 btc.
Updates:We are happy to say we have sold several copies and as promised to these customers, we are not going to sell in such cheap price any more. But if you have good ideas so we can work together, you can still contact us
Thanks
All other gone away and it seems it is a good chance for someone to setup your own one
Good luck to our customers who have already bought this script