WiZeR
I'm reading your posts and I'm wondering what your problem is. I don't mean that nastily or in any other negative way, I assure you, I just wonder what your problem is.
You have lots of options, ranging from free plans on the internet, to paid plans, to ready made commercial jigs. So you are not short of options, are you? And you are considering buying jigs, so money
per se is not the issue, am I right? You just want a solution that works for you.
So, given the above, I just wonder where you are getting stuck. In my experience ALL jigs have weaknesses as well as strengths, and that is true of mine as much as any others. Indeed, that's why I've published 3 different tenon jigs! They are all good their way, and they all have their limitations. I'm sure the same is true of all the others, whether they are free plans on the internet or ready-made commercial jigs.
Perhaps we would get further with this if you could explain exactly where you are getting stuck with the options already before you.
Please don't take offence with this, none is intended and I've had a crap day already
Steve