Sharpening Jig

So after looking at Brent Beach's sharpening page I decided to build a slightly modified jig to carer to all of my sharpening needs. I first built the "platform" which is made of 1/2" MDF with plate glass and acrylic laminated to it with spray mount. The plate glass and the acrylic are the same thickness so they form a continuous plane.Sandpaper in grits 220, 400, 600 and 1000 are surface mounted with Super 77, when worn out, the sandpaper should peel off easily and a little acetone should remove all traces of glue. I use 5.5" by 3" sections of sandpaper, I get 6 from a sheet which is 30 sharpening sets worth per pack, I'm guessing here but I image no less than 3-5 sharpening sessions per piece. Adding up the number of irons and chisels I sharpened today, I think I can sharpen 360 plane blades and 432 chisels with one pack of sandpaper in each grit.The primary angle block is made of hard maple, 1 1/4" thick, 2" tall and 3 1/8" wide. This block is for my larger plane blades and requires a 3 3/4" extension for a 25 degree bevel. My widest plane blade is a 2 3/8" from a woodie (thats the wooden jointer, Jeff), the other one is an unmarked (except for Eclipse, on the iron) USA made #5 (thats a jack, Jeff).

I also have two slips, thats what Brent calls them so I'll continue the trend, one is .060" thick for the secondary bevel and another at .10" thick for the tertiary bevel. I'm not exactly sure how he holds the slips onto his jig, but I was having a hard time. I wound up using the strips longways, holding the slip and sliding the jig over it. I'm not really happy with this method. I also don't know that the acrylic sheet was the way to go on the base. I may make larger slips out of Ultra High Molecular Weight Polyethylene. UHMWPE is a really dense milk carton, same stuff just dense as hell. It has a low coefficient of friction and a wearability 100 times that of steel. An ideal slippy surface.I also need to make smaller jigs for my tiny planes and chisels, which have specific clearance issues. My next platform will be thicker, with a pocket for a flush mounted grinding stone, and room for 220, 400, 600, 1000, 1500 and mirror buffing compound on hardboard panel. Here is a shot of the edge with a quick touch-up, I was really anxious to get this iron in the plane and try it so I didn't spend as much time as I could have getting the edge perfect. but my front and back bevels worked well as illustrated by this bag of 2x4 shavings.The dial calipers indicate my shavings are a little over .003" thick, this was after tuning it down from about .009". It leaves a surface like glass on the soft pine. I'm sold.If you want more information about the jig feel free to comment. I have been debating about using some of my stock of ash to build jigs to sell, let me know what you think; too simple? Will people prefer to make their own? Would you buy one? Is $40+ shipping a good deal?