problem with the full kits is you get a few really small introductory products. A few years back, I got a kit and the base brush was tiny and the stone was really small, too. Fortunately, it had a decent adjustable edge tool and 2 bars of wax.
Most kits now only come with a non-adjustable edge tool (0/90 deg), a tiny stone, one bar of wax...and you don't even get any base brush.
If I knew then what I know now, I'd buy separately (probably in this order):
1. a good snowboard wax iron (they heat almost instantly, have presets, an indicator light, etc)
2. good wax in bulk (all temp is softer/faster to scrape and colorless)
3. plastic scraper
4. a common wetstone (for edge de-burring), medium size
5. a pack of common scotchbrite pads
6. edge tool (adjustable, only if you're gonna need anything other than 0/90 deg bevel)
7. brass brush (for pre-cleaning), medium size
8. corse nylon brush (for final brushing), med size
9. p-tex candles
10. metal scraper
If you shop right, all this will cost about the same as the basic kits. You'll probably get higher quality, but no luggage (bfd).
As far as the vises are concerned, I dont use any. Instead, I constructed a waxing stand out stuff I already had. For deburring and sharpening the edges, I just hold the board perpendicular on the stand with one hand and use the tool with the other...works fine.