Alternative to finding artifact combination lists as given in those sites, you can install Anfit`s mod for Firefox.
One of it`s options is to automatically calculate what types of artifacts you can fuse using the ones you already have and where you can just click on the name of the artifact to automatically load the combination and build (which saves a lot of time) ... So you will never have to worry about combinations ever again... :)
(Don`t have the Anfit web site url at this time... Will check and post here later... Most people know the url, so can anyone help?)
The Capsule lab imho many dozens of times worth the investment...
You`ll need a lot of artifacts of different types though to get the best combinations ...
(See the times given by others)
If you don`t already know this too provides some help on how to dig artifacts...
http://www.sfcommunity.co.nr/
and -> Click on `Artifacts guide`
Best of luck with your capsule lab... :)