Add Features to Leaflet Draw

This project requires modification to Leaflet Draw, a plugin for the javascript mapping library Leaflet. I need the plugin modified to fit my needs. The scope includes: 1. Use existing 'area' functionality that displays in a tooltip when drawing to create a divicon ([login to view URL]) in the center of the drawn shape. For example if you draw a circle and the calculated area when actively drawing shows 120 acres, take that value when drawing is completed to create a new divicon in the center of the circle and the same for rectangle and polygon. This divicon should be updated with the proper text and center location if the shape gets edited and remove the divicon if it gets deleted. 2. Add a 'text' button to the drawing toolbar that a user can click on the button to activate the tool and click once on the map and start free typing text. The container for the text should have a 'handle bar' on the left hand side of the text that can be used while in the edit mode to drag the text and move it to the desired location (like a marker can be dragged). This handle bar should be in the same style as the toolbar buttons. The box should be transparent when 'saved' and should somehow be changed (with css class?) when being created and edited so that the user can both tell that it's being edited and to make it easier to read what is being typed, something like a white background in the div or something like that. What I don't want is an input element to be typed in. This should also have a 'cancel' tooltip attached to the control button so the user can cancel the operation, just like the existing tools. 3. Add a color picker and slider for fill opacity (fill opacity) for drawn shapes. When the user clicks on the palette button it brings up a div full of colors to select. When a color is selected the div goes away and whatever tool is selected next (until color changes) uses that color for fill and stroke for the shape/text as well as the 'color' of the icon image (from the sprite) if the marker tool used to place a marker. The color picker should be in the same style as the toolbar buttons. Slider for opacity level not shown on screen shot image included... 4. Use the existing marker tool to drag and drop a new marker and have the ability to select from a set of icon images (using an image sprite, a basic example of sprite is attached). Icon should be able to be changed when in 'edit' mode. Let's say each row of icons in the included sprite is a color choice in the color picker toolbar. For example if the third color of the sprite is selected from the color picker toolbar then the marker's icon should be that color from the sprite. It would be nice to have another div show up when clicking on the marker tool that the user selects the proper icon, the div goes away and the marker is dropped on the map (just like the blue one does now). 5. I think the edit mode should only be enabled individually on each drawing/text/marker after clicking on it so that if you change the color or opacity it only affects that one item and not the whole set. Would that make the edit button in the toolbar obsolete? 6. BONUS - modify the draw plugin to work with .8 version of leaflet library. Please excuse the very crude drawing, just wanted to include it so you get a better idea of what I'm looking for. A starting point to work from is on examples/[login to view URL] in the export.zip.