It honestly seems to me that I didn't need flux paste and this is the first time I've ever assembled anything like this.
I used to make such a mess with a soldering iron
not sticking things together (except melted plastic insulation).
I watched a few soldering instruction videos, I realised I wasn't cleaning my Iron properly or ensuring the tip was tinned properly, and then everything magically stuck in the right places.
I also thought the cheapo Iron I had was rubbish because I bought one from Amazon to get the stand (life is not worth living if you mark the dining room table).
It turns out this one was much better than the more expensive cheapo rubbish I was using.
Or was it?
New tip. properly cleaned.
I have bought a cheapo soldering station
now ( new toys), and I did use this for the assembly with lead solder. None of my teeth are loose yet
The point is the hardest thing was getting over my fear that I was going to end up with homer Simpson type mess with the soldering Iron permanently stuck in the middle
As someone once said Soldering is easy