I made some quick shorthand notes for building a suit with imbue and here are my thoughts:
Dexxer Armor Characteristics:
HP Increase: 3 pcs, +8 each (Max is 25) Luminescent Fungi/Essence
Lower Mana Cost: 5 pcs, -8% each (Max is -40%) Dark Sapphire/Fragment
Dex Increase: 3 pcs, +8 each (Max is 25) Luminescent Fungi/Essence
Stam Increase: 5 pcs, +8 each (uncapped) Luminescent Fungi/Essence
Result: +24 HP, +24 Dex, +40 Stam, -40% Mana Cost
Total Ingredients: 11 Essence, 5 Fragment, 11 Fungi, 5 D Saphire
With two armor slots reserved for resist increases to bring it to all 70s, this leaves a couple of additional slots for INT Inc, or a regen. Likely to have 2-3 additional open slots with this plan (total 4-5) depending on how imbue interacts with exceptional crafted items and runics.
Dexer Jewelry (Bracelet and Ring):
+25 DI Turquoise/Fragment
+15 DCI Pearl/Fragment
+15 HCI Ecru/Fragment
+15 Skill Slot A Turquoise/Fragment
+15 Skill Slot B Turquoise/Fragment
Total Adds: +50 DI, +30 DCI, +30 HCI, +30 Skill A, +30 Skill B
Total Ingredients: 8 Fragment, 6 Turquoise, 2 Pearl, 2 Ecru