I'm reasonably handy working on my games, but I've never had to do anything with Molex connectors. I have a specific mod I want to incorporate, but I'm not sure the best way to buy supplies for it.

Here's the mod I want to incorporate, which needs a 12 pin .156 connector and a different style 2 pin connector: https://pinside.com/pinball/forum/topic/sttng-mixing-gi-ocd-and-kbop-mods-issue

Recognizing this may not be the only need I'll have for Molex connectors given my collection, should I just buy the individual parts I need now, or does someone make a decent "kit" with a variety of parts in it for future use?

I saw that Pinball Life has a Molex Kit (https://www.pinballlife.com/mm5/merchant.mvc?Screen=PROD&Product_Code=umick) but it seems like it only has 1 of the 2 connectors I would need for this mod. Also, given the range of games in my collection, I question whether buying a kit would provide me the variety I might need.

Should I get this kit anyway, or is there some better solution for stocking up on potential future part needs while also getting what I need for this mod?

Thanks for any advice.