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You don't need a collimation kit for an SCT. There's only one adjustment - the secondary - and all it takes is practice. At some point, it will "click".
When adjusting each screw work in small increments - one eighth of a turn is a lot!
A tip for young players is to use a stick, ruler, rod or even an empty/finished cardboard roll (for paper or foil). Hold it front of the scope so it covers centre to outside edge (with the diffraction rings showing) and you will see a shadow. This will help you orient the collimation screws to the pattern and help you pick which ones to adjust.
The first time I collimated, it took me a couple of hours - being very careful and learning as I went. Now I can do it in 5 minutes even using a real star. Having said that, I rarely need to adjust as SCTs hold collimation quite well.
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