Admittedly most are workable under the circumstance that their effects are reduced dramatically and their recharges are increased substantially. Sort of like how dominator mind link or brute melt armor have but a tiny fraction of the utility of the original powers.
But without fundamentally neutering levels of stat shifts, there's way too many self heals, set-defining powers, etc littered all over these. Envenom, Weaken, Mental Training, Oil Slick Arrow, Acid Arrow, Radiation Therapy, Siphon Speed, Fade, and World Of Pain are all examples of powers I wouldn't be ok with unless their functionality was similarly at least 75% gutted.
You might say this is already the case in all epic pools, but I think there's plenty of counterexamples where powers don't have their numbers adjusted all that much. So that's my one caveat.
EDIT: I'd say my caveat is most serious for the poison and trick arrow powers. You're literally offering just about every major reason to take each set in one epic (especially with /TA blasters already having the other cool parts of trick arrow covered). These examples in particular would need to have their effects quartered, their recharges doubled, their endurance costs increased, and maybe their radiuses decreased as well before I could even begin to be ok with it...
EDIT 2: Pretty sure all of the self heals you've included here is another one very much out of line with what epics currently tend to include. And when so many builds are easily soft capping defense these days, a self heal is just the last piece of the puzzle to unlocking stupid levels of god mode.