Originally Posted by Yukon
... it doesn't need to bevel the edges to any degree it just has to make them nice and sharp.
I'm not sure if I've interpreted this correctly, but I added emphasis to the quotation to indicate how I interpret it.
That is: it needs to bevel the edges some fixed amount, but you don't need to be able to vary the bevel to different amounts. In other words, you might get a base edge tool that has a fixed 1-degree bevel and a side edge tool that has a fixed 3-degree bevel.
The cheapest thing to do is:
(1) Forget about the base bevel. Don't file the base. Just lightly deburr it with a gummi stone freehand. If you need to touch it up with a stone, you'd have to do it freehand.
(2) For the side guide, use an angled aluminum bar and a spring clamp. Total price from Artech, Tognar or RRS would be under $20 (plus shipping). I guess you could get an angled bar from a hardware store or somewhere cheaper, though it would probably be 90 degrees, rather than 93 or whatever you want. You could add a handmade shim. It would be workable, though perhaps not the most precise thing in the world.
That's just an attempt to be responsive to the original question. Myself, I use a base guide and an SVST side guide, but those together cost over $40.