Ok, so I just had a beautiful experience with 20g of spice using the direct E-Mesh method.
I put on this video: https://youtu.be/p7JcWjPSk2s and it was quite possibly one of the most beautiful things I’ve ever seen. Watching on a 65” screen in 4K.

However the full effect of the spice wore off within a couple minutes.

I would like to extend that effect using harmalas. I have a powder that is 2:1:1 ratio of TetraHydroHarmine (THH):harmine:harmaline HC

Can someone advise me on how much of this I would use, how to use it, (do you put it in juice, can you vape it? How long do I wait after taking it) in combination with A. Emesh vaped DMT and B. Orally administered DMT. If I want to replicate that same beautiful experience without pushing myself through into hyperspace. (I want to go there eventually but I’m building up to it slowly)

Any information or links would be greatly appreciated.

Simplest way is to take the harmalas orally, wait 10-15 min and then take the spice. You have to find a dose that doesn't cause too much nausea. You can dose a little less first and take more if you feel ok. For me 80 mg harmala HCl is just tolerable, more is too much.

Since the THH is mixed in with the others [not my personal preference] you might consider dual pre-dosing orally. After oral administration each one takes a different length of time to reach peak in the blood. Harmine and harmaline are pretty close, THH is much slower.
Looking at these pharmacokinetic curves for orally administered alkaloids you can see that for harmine+harmaline starting to smoke at 60 minutes is where the magic is best whereas with THH its more like the 2 hour mark.
Individual sensitivities vary but for me, if using that mixture, I'd try dosing 200mg 2 hrs before and another 200mg one hour before. I'm kind of a nut so from there I would increase dose until the harmaline produced too much stoning and ataxia.

Good idea trying harmala predosing, I never even bother smoking DMT without harmalas in my system. Straight smoked DMT, for me, is like being slapped in the face by a rainbow colored pillow.

Thanks for the info guys.

When taking the harmalas orally, let’s say 200mg. Do
You mix it with so many ounces of liquid? If so what kind?

I’ve used straight Harmine in amounts up to 200mg in shroom tea teks, actually consuming them IN the tea with strong results.
I did 250-300mg of Harmine one night on it’s own with a few gulps of water. Then spent the next hour dry heaving. At that point I swore off harmalas... until I started with the spice and realized the trips were WAAAAY too short (well the low 15mg doses anyway, I ramped up to 20 and ended up in some crazy candy/cartoon world which was a little jarring. I can imagine that drawn out could be rough.

Honestly, when predosing before smoked DMT or taking with mescaline I load it into pill casings. The stuff is just so... well, you know
But when taking with oral DMT I do dissolve it in a couple gulps of warm water. Its harder on the stomach and much harder on the tongue but I manage to keep it down.
When you smoke DMT on harmalas keep a small 'bucket' very near at hand. A coffee can works.
You'll figure out why, if you smoke too much DMT on harmalas.

Also make sure your music isn't about to switch over from gentle ambiance to wild thrash metal just as you inhale the final hit of DMT. Trust me on that.