If I may be frank; I would start with the KISS principal & go with a cheshire eyepiece & a laser...
These represent a relatively simple & cost effective approach to be quite honest & using them allows me (as a fairly new comer to Newts) to effectively collimate both my 12" f5 & 5"f5 Newtonians in no time at all...
Whilst I did splash the cash a little for my laser (Hotech) after going through the process a few times now I must concede, I probably could have spent less.
Understand the 'Paralysis by analysis' conundrum, I often suffer from it as well but, if you stick to the KISS principal with this & follow Astrobaby's guide you will be collimating with ease in no time flat...
My 1.78 cents worth...
Cheers