Halfling pure level 28 FVS Dexterity 32, Wisdom 68 (can get far more just a placeholder), Constitution 36, charisma 28. I went with a pure FVS and it will be an exalted angel again just to illustrate. If you go with grandmaster of flowers and splash monk levels you get more saves obviously especially in ocean stance - hitting mid 70s easy for that build.
+4 Epic Levels
+12 FVS levels
+1 Halfling racial
+3 Halfling luck enhancement
+ 10 Resistance
+2 Good Luck
+4 Greater Heroism
+3 vs. all magic Saves (angelic presence Angel of Vengeance)
+4 inflame temporary saving throws (warpriest)
Perfection of body +6 fortitude saves
Unearthly Reaction +6 reflex saves +3 dodge.
Ability scores Wis +29, Dexterity +11, Constitution +13.
Will 82 (86 temporary). Fortitude: 72 (76 temporary), Reflex (70) (74 temporary).
This does not use any feats by the way which could put this into the mid 80s.