You'd probably fare well with the mods since you've got the background to understand them (better than me!). In any case, now that you've gotten to try other people's kits you have better idea of what you might purchase in the future.
To answer part of your question as to where to get those kits you mentioned:
Screwdriver can be purchased here:
ecigscrewdriver.com
or you can pre-order it from a well known reseller here:
Electric Cigarette & E Liquid - Totally Wicked Electronic Cigarette Fluid
Jantystick:
Janty USA (they are currently on pre-order)
About Me 
