Questions around CI Trickster - Crafting, Gearing, Passive Tree

Hi there,

I'm playing a Blade Trap Trickster with Ephemeral Edge, making use of Volatility Support. I let myself be inspired by some other characters of the last league on poe.ninja, but in the end more or less made my own build, it's the first time I'm using Chaos Inoculation (I'm pleasantly surprised :), and I have a couple of questions on how to go forward in a good way, and I' curious on whether I overlooked valuable interactions etc.

I just got my first two void stones from the eater and exarch, especially with the former I was surprised on how easily he went down, given my gear. The pob at that point was: https://pobb.in/bjcOrujwwfLy

So currently I have no trouble at all with red tier maps, and can easily farm some currency in heists etc., which I could use to eventually buy a real chest, and helmet mostly, six-link the former and upgrade my gear in general to get more ES, and probably I will be able to (for the first time in my rather long poe life, also do shaper and maven, etc. ;), but I have some specific questions:

1. Passive tree
I know that I can get the ES mastery for increased ES from my helmet and with my current rings (and amulet) also the Evasion and ES mastery, which give ES bonuses if they have evasion. Aside from that though, I would mostly try to get more maximum frenzy and power charges and a third jewel slot with my last points. I feel that I'm really pressed on skill points here, and don't have the feeling that I can really fit in a timeless jewel, let alone cluster jewels... I definitely have to think about tatoos; my int gives precious ES though...^^

Any tips or comments? :)

2. Active skills
I hope that I can fit in skitter bots, as soon as my enlighten is level 3. Maybe I will get rid of precision for that, but I would have to keep my ice golem alive better, I think. Do you think linking elemental army just for the resistances would help a lot? Also trap and mine damage on a six link and awakened lightning penetration at one point, of course!

3. Crafting and gearing - the big one
I really would like to, instead of just farming a couple of divs and then spending them on a good chest and helmet currently, craft those myself, if possible with not too much of an investment. (I won't have more than 5 to maybe 10 divs available by the time I'm doing this.) It doesn't have to be the most high end stuff possible, of course, just significant improvements to what I have. I didn't find much to crafting this stuff, just a short advice of Ghazzy, to using dense fossils for helmets which makes sense, I guess. For my shield I e.g. already used a fractured titanium shield with essence crafting - it doesn't have much yet (it was the second I used, now I'm waiting until I have some more on stock), but still it's usable, I guess. ;)

Besides just going for the obvious, ES, resis, crit multi, etc, probably some mana reduction and attributes, to make space for tatoos, are there any special things, which are easy to miss, which I should look out for? Any unique interaction or so?

I'd be happy about any suggestion or comment :)