https://www.pathofexile.com/forum/view-thread/2467666/page/1I made lots of modifications as I went along but it was a good base for me to learn from.
Swap to a carcass jack though - better for damage
With this season though I'd take advantage of a lot of what you can get.
Helm - Toxic Rain Fires Additional Pod Enchant
I use a -9 chaos res hubris circlet with max ES/% int mods (was the BiS at the time of purchase, could prob find better now) so I can use enlighten etc.
Weapon - quill rain (low damage, low budget)
or a 6l thicket bow (very easy to craft yourself or just buy)
+1 socketed gems
+35% DoT multi
Additional arrow (not mandatory, as this is rare to get), can swap for attack speed
multi mod
+2 support gems
+40% chaos dot multi
quiver - % dot multi
% chaos dot multi
life
attack speed
body armor - carcass jack
gloves - chaos dot multi
life
res
ias
boots - MS
tailwind
elusive
res
life
amulet - +1 chaos
+1 dex
chaos dot multi
life
ring 1 - non channeling skills have reduced mana cost elreon craft (use this on both)
triple resists (i use this to keep my resists capped)
ring 2 - non channeling skils reduced mana cost elreon craft
% chaos damage from essence
IAS
life
res
belt - life
res
% chaos damage
https://pastebin.com/Qst5yitCThat's my character if you want to see what I consider BiS for my trickster. You could min-max it with mirror tier items, but I'm not that far into the game
You can get bow fires 2 additional arrows and fracture that onto the bow via garden prior to crafting the +1/dot