correct. what myself and a bunch of us that have been building awhile will suggest is if you're planning of doing more then just the one effect and intend on getting more into the hobby, is to do the following.
choose a few projects, like 2-4 projects and make a list of all the components you'll need. once you make the list order up everything you need from as few sources as possible. i suggest ordering from tayda electronics especially if you're in the US, cause they have a distribution center in colorado so you get things rather fast and they're inexpensive. you'll want to order a few extra of each part just in case one gets damaged or something. plus you'll have some parts for the next builds. you can make the list on an excell spreadsheet, so you can keep track if you want to go back and build something again. oh, if you're going to order from tayda their poly caps are greenies, so they can be rather big, so you might want to spend a few extra bucks and get box caps, its not that much more. you can also get an
assortment from smallbear, which will give you some of the values you'll use and they're similar to the older panasonic caps, and fill in what's missing from some from tayda.
btw, i just updated the mojo hand colossus layout, because someone just found 2 caps that were the wrong value. also, i'll have the unknown muff done a little later if you want to give that a go.