Just to give a very quick response, for chi blast the only piece that needs putting into it is AF2 head with the upgrade to Penance so when your hitting something solo, with your easily achieved 50% Subtle Blow, Penance will reduce mob tp gain by a further 30%. There no need to use a boost, or macro in MND.
Chakra set is important because those 1.5K Chakra's make a massive difference to a 400-500HP Chakra. Even now its still nice everytime I use it, usually now in WKR as I don't seem to be on MNK nearly as much but its still a big help.
More importantly is -DT sets. Many mobs, NM's, HNM's will deal physical dmg and tp move that hurt, having gear there to swap into is very useful. There are good -DT options available. Qaaxo Gear is good 119 sub in for -15% PDT, add in 2 Dark rings with 4-6% -PDT, BB -5% DT, then another -3% on Oatixiur which will presumably be your first H2H, Repulse Mantle for another 4%PDT and sexy knockback+2 (thats purchasable from Peacekeepers coalition for bayld (I think)) and straight DT taken pieces like Twilight torque and the harder Defending ring. I know theres other pieces but those are the bits I use bar the H2H and I know that needs updating as you can probably reach even higher numbers now. The reason I use the Qaaxo set for the -15% PDT on them is because if I need the set left on for a while the Qaaxo gear also has sound dot output.
Your 119 AF will just be used for macro in pieces with the possible exception of Anchorite's gaiters as although its an outdated tactic now, 119 Emp legs would go very nice together although then your potentially giving up off tyhe top of my mind 6% Triple attack from having and upgrading the Taeon legs and feet.
Same with 119 relic armor i'm afraid, up until Taeon came out, wearing some of the upgraded 119 AF & Relic pieces were good place holder's for other pieces, that said, I'll go out on a limb and say 119 AF3 body is our best piece, even with Impetus down? There is also the whole load of weapons and armor that has come out with this first RoV update.
I suppose there is alot there to do, and I hope you have a friend or a way to help farm Rem's tale's 6-10, its been those number chapter's that has stopped me from being able to make multiple JSE 119 pieces as most of them come bit by bit from Sparks for me - earning Sparks can be quick in Abyssea as with all the crit rate+ Atma's you can hit 100% crit rate and hit over 500dmg per hit making that one Sparks quest very easy - can build up a load of Sparks farming things like Dark rings or just merits as their is a campaign on? might of finished now.
Anyway getting 109 JSE equipment is very easy as you can do all the rem tale fights 1-5 with 1-2 others and 3 trusts. Getting all the home points for rem tale 1-5 zones is recomended along with the 5 home points in sky for easy travel. Sorry lots I could say but in a rush - Good Luckl