I can definitely replace the pure sky, but the looper and tuner will be tough.
Knowing your like of OD's, you could do a Zen Drive clone. They're a pretty cool pedal.
I have a Mooer clone and a hand-made one I bought off Reverb.

Which reminds me, I should put the latter back on the board. Haven't played it in a while...

Oh, and nice job on the phaser!