In regards to the veneer, it would all depend on what sort of veneer you would like to apply. you can get burr walnut (the standard swirly grain) which is beautiful but due to the nature of burr timber (that of which is from a defective part of the tree) it tends to break when you bend it..
if you go with a walnut or otherwise which is designed as a timber veneer for internal domestic purposes it will usually be very flexible and have an adhesive back that when heated will assist with adhesion.. its simply a case of putting in place then using a hot iron and dry tea towel to make the veneer stick perfectly.. this type of veneer should comfortably do a 6mm radius edge without cracking..
failing that you can use a product called
kwik grip which is made by selleys .. it comes in a maroon tin (500ml 1L etc) and is a very strong contact adhesive especially designed for laminating or veneer applications such as this one..
in regards to the vinyl you can use a product called
gel grip made by selleys again but is more flexible and will tend to dry spongy so not to make the vinyl go like a peice of plywood
it comes in a green tin and same sizes as prementioned kwik grip..
both of the adhesives are about 10$ per litre and the veneer can cost around 50$ for a sheet large enough to redash the mini...
if you have any other questions ask away, oh btw i work at bunnings ;o)