The modders and creators tiers are now available
The modders
For the people that have the know how, if you just want to add some of you own modifications to Izumi the modders tier is for you, this will give you access to the blend file for Izumi, which is the one I work on before exporting to PMXe, I recommend using the latest version of MMD tools for that since it will do a good job with all the bones while exporting, meaning since the model has a lot of bones organized in layers, the export will set all the hidden bone layers as hidden bones on PMXe, making it easier to delete the unneeded bones, shame that it doesn't export constrains like MeshIO does but this one is much faster and saves you some trouble with textures and names for the bones and morphs, this file has no IK bones, no physics, no control bones like the twist bones and no material morphs.
The creators tier
This one will give you access to the base mesh for Izumi this where she comes from and the one that I will most likely use if I make a new model (after some modifications), this is for the guys that want to create a completely new model from scratch (almost), no rigging no morphs just the unsubdivided mesh with some material used as topology markers, this one is rather old by now and will not match the current shape of Izumi's body, but it will get you started on your new model
for this tier and the the $10 have a requisite though, you must have fulfilled your pledge at least once, this to prevent people from taking stuff and running, once you fulfill this contact me and I'll give you a link for the DL or in case of the $10 tier I will accept your request and send you the fixed model