Back in 2007 I wrote the post below about the Mobile Sharpening station I made for myself out of the Stanley Galvanized Rolling Workshop. Since then these units have disappeared from the shelves of home improvement stores here in the States. Just a few weeks ago I found what looks to be a good replacement, the Hawk Massive Mobile 3-Part Tool Box. Here is a link to it on Amazon:
The only drawback is the bottom bin doesn't have a hinged storage bin. It looks like you could still cut an opening in it though. In this day and age with gas prices the way they are, many mobile sharpeners are opting for smaller cars and doing scissors work inside salons and dog grooming shops. This unit has been the next best thing to a van for me.
Scott, in the comments below, pointed out this unit: http://www.amazon.com/Trademark-Tools-75-4650-Oversized-Portable/dp/B002ZZHK9W/ref=pd_cp_hi_1. Take a look. I agree, this is an even closer match and it has worked well for Scott; and he's quite a bit taller than me too.
Here is the post from 2007:
I thought everyone might like to see the Mobile Sharpening Station I use for In-Salon Sharpening.
This is a Stanley Galvanized Rolling Workshop. I bought it from Home Depot a couple of years ago. It comes apart in three parts so it is easy to put in the trunk of a car. I added the 24" x 11 1/4" poplar top by screwing it to the flip-top lid from underneath. I also cut the hinged storage bin out of the bottom to store my machines. Most of the units they make now just have a bin in the bottom, but most flat hone units will still fit in it. (You will see what I mean when you click through the link above) The middle unit on the newer models has a draw in it and a parts bin. It can be a little cumbersome getting it through doors, but it provides a work space for me so I don't have to take up a station in the salon.
The other thing I like about this set up is I get to work at the same height every time. And it's a perfect height for me because I'm...well...short. :) If you are taller than my highly elevated 5' 9'' stature, you could add what ever thickness board you'd need under the 24" x 11 1/4" top.
When I bought it, I think I paid about $80 dollars for it. The aggravating part is that Home Depot only stocks it from time-to-time. (It's out of stock online right now) They are readily available in the UK, but I guess they don't sell as well here in the states. If you'd like one, ask your local Home Depot about it. If they don't have them in stock right then, keep a lookout for it there and online. They will probably have it in the future.
The top picture shows the unit with the Hira-To and and Ookami in it. The bottom shows it with my equipment on top, ready to work.