How tall are the angels Moses saw in the last heaven? and what type of angels were they?

2500 miles tall. When you consider it took 40 years to walk about 200 miles, that means they traveled 5 miles a year. the rest is simple math. the speed of travel (5 mpy) times the years tall (500) equals the height (2500 miles). They were tall angels.

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Note: nothing of the sort can be found in the Bible.

The Angels of God are spiritual beings, they are at God's holy service!

Angels do not have 500 Miles of length, they are similar to men, they can fly, walk, and cross any obstacle, such as walls, rocks, steel, air, sun, sea, earth, etc. ...!

Therefore, I advise you not to see too many science fiction movies, otherwise your mind is so sensitive to believe in any nonsense you see, outside the reality of the facts.

Genesis 19:1-11.

19 Now the two angels came to Sodom in the evening, and Lot was sitting in the gate of Sodom. When Lot saw them, he rose to meet them, and he bowed himself with his face toward the ground. 2 And he said, “Here now, my lords, please turn in to your servant’s house and spend the night, and wash your feet; then you may rise early and go on your way.”

And they said, “No, but we will spend the night in the open square.”

3 But he insisted strongly; so they turned in to him and entered his house. Then he made them a feast, and baked unleavened bread, and they ate.

4 Now before they lay down, the men of the city, the men of Sodom, both old and young, all the people from every quarter, surrounded the house. 5 And they called to Lot and said to him, “Where are the men who came to you tonight? Bring them out to us that we may know them carnally.”

6 So Lot went out to them through the doorway, shut the door behind him, 7 and said, “Please, my brethren, do not do so wickedly! 8 See now, I have two daughters who have not known a man; please, let me bring them out to you, and you may do to them as you wish; only do nothing to these men, since this is the reason they have come under the shadow of my roof.”

9 And they said, “Stand back!” Then they said, “This one came in to [a]stay here, and he keeps acting as a judge; now we will deal worse with you than with them.” So they pressed hard against the man Lot, and came near to break down the door. 10 But the men reached out their hands and pulled Lot into the house with them, and shut the door. 11 And they struck the men who were at the doorway of the house with blindness, both small and great, so that they became weary trying to find the door.

Verse 4 highlights that the people of Sodom and Gomorrah, particularly the Gays, wanted to abuse the Angels of God, because they saw them as men. But then, the angels blinded them for a few days, seeing their wickedness.

This is to tell you that, Angels can take human form, since they are spiritual, asexual beings.

Nuriel, aka Uriel was 300 parasangs high, which is roughly a 1000 miles high.

Nuriel basically means fire of god, whereas Uriel means light of god, but is the same angel. Same meaning. 

The name nuriel is only mentioned in texts associated with Jewish mysticism. In the text you speak of, Moses is taken to the heavens by the Metatron who introduces Moses to the various angels. 

Nuriel, or Uriel is one of the four living creatures closest to God. The other three are Michael, Gabriel and Raphael. But, the text in Jewish mysticism becomes muddled.

Jewish mysticism is very complex and goes against the grain of traditional Judaism.

The Metatron is Enoch, ancestor of Moses, but traditional Judaism rejects the belief that humans are capable of becoming angels.

These mystical texts are just the works of 5th century writers that were influenced by the earlier messianic works, like Enoch, Daniel, Ascension of Isaiah, but took the weirdness to another level 

Please, Pikmin, please tell us that you realize all this 'angel' crap is uttermost mythological nonsense. Please?

None of what you speak of ever existed.