For long term results I would suggest that the answer is to eat what gets you normal blood sugars, energy, vitality, health and strength consistently; anything else, will not be long term.
The juicing part is only going to be a kick-start.
When you say you eat junk food Vegan, you already know the answer to that point consciously, so you need to convert the sentiment to actions that work for someone who is carbohydrate intolerant.
I am more interested in improving carb-tolerance than I am in designing a diet that panders to my current levels of tolerance
I accept beetroot, butternut squash, carrots and berries into my LCK regime. I understand that my HbA1c may not be low 30's, so take the mid 30's. It is not likely the a WFPB approach for example with root vegetables will get you the numbers you seek, so within the parameters you have selected, I would suggest being frank about the foods on your protocol that will work.
I'm curious why you 'd suggest that a WFPB approach won't work. Is it because I'm diabetic, and therefor will never be able to tolerate these foods again. Or are you suggesting that those foods will cause issues in those who are not diabetic?
The diet I'm trying to work towards will be predominantly based on fruit and raw veggies.
Yesterday I listened to Dr Gabrielle Lyons. She is on the meat side of things, but is true expert on protein. She stated that muscle can provide up 60% of glucose disposal - this has got to be applicable to Vegans also, so maybe Power Building would help you.
I've not heard of her, but will look into it. Although I have no real interest in Power Building, I do want to get back to a better build and level of activity.
Ultimately I'm looking to get to a point where my insulin sensitivity is razor sharp.
I you've no interest in the theory he suggests, then stop after his blood sugar readings. At the point of this video, Andrew had been eating am extremely high-carb, raw-food (fruit-dominant) diet, for eight years: