Hi Geoff, regarding the superglue, it depends on how quick drying time your mate needs for the material he is using. Generally, the thicker the superglue, the longer the drying time, which gives the user more time for positioning of the part. Also, thick superglue can be used as a filling medium, so in some cases it can be used to kill two birds with one stone, eg, joining two or more parts together and filling gaps at the same time.
An 'activator' can also be used with superglue, which makes the joining of materials almost instantly once the superglue has been applied and the parts have been joined together. Spray the activator on the joined parts and it effectively cures the part instantly.
Hope this is of some help