Asterisk vTiger customization

What I would like to do is as follows: 1.  Get an Asterisk/FreePBX server running (probably do some kind of dedicated hosting unless shared hosting could still be reliable for the VoIP) 2.  Get GOOGLE VOICE free phone number working on Asterisk RELIABLY.  There is an issue or two with Asterisk and Google Voice that seems to cause some problems not allowing 100% of inbound calls to be appropriately answered.  Please see here (long thread - stuff most recently posted - around January, 13, 2012 - addresses core issue and suggested fixes  [login to view URL] ; ) 3.  Get Asterisk/FreePBX and vTiger fully and properly integrated.  (Pop ups/click to dial/caller id inbound/etc) 4.  Instant-Dialer for New Leads.  Here's where potential customization comes in: A.  As SOON as the new lead comes in - the Asterisk server should begin dialing the phone number of the new lead immediately. B.  A POP-UP window will immediately BEEP and notify all logged vTiger users that the system is dialing a NEW LEAD.  "<Lead First Name> <Lead Last Name>. A new lead is being DIALED right now!  Would you like to accept this call?"  (Note:  A section in vTiger should be available to assign user ID's, roles, and/or groups to this feature - meaning if the user ID is NOT listed in the 'Instant-Dialer' set up screen - that user will NOT see these pop-ups - but any user ID that IS listed in the 'Instant-Dialer' set up screen WILL see this POP-UP.) C.  The POP-UP window will have two buttons 'ACCEPT' and 'DECLINE' - The POP-UP window will also default to 'DECLINE' and close if no selection is made within 10 seconds. D.  If all users select (or default) to 'DECLINE' the call is dropped/stopped on the Asterisk side. E.  The first user to 'ACCEPT' the call will have the outbound call (that Asterisk is/has already dialed and has live call in progress!) routed to their extension (will use FREE soft-phones to start.) AND the lead information in vTiger will open up in a NEW WINDOW web browser (not the same browser window - this will help to keep data/work being entered currently without losing it and still allow user to make quick decision to accept a new call.) F.  Any other user who presses 'ACCEPT' after the call is accepted by another user will be presented with a follow up dialogue window: "The call has already been accepted by another user." with "OK" button. Looking for budget price...don't know what to expect...please offer you detailed quotes.