Its hard to answer your question because you don't have specific information. However, generally speaking, if you are making a suit of 6 pieces plus jewels, you can calculate how much resists total on the 6 pieces.
horned 2 3 2 2 2
barbed 2 1 2 3 4
So, just from the enhancement bonus using Barbed Leather, you would have 12 physical/6 fire/12 cold/18 poison/24 energy.
If you are making a suit with all 70's, you would subtract these numbers to get what you need the suit to have either before, or after, Imbuing.
58 physical/64 fire/58 cold/52 poison/46 energy.
So, in this example, you would need a total of the above numbers on six pieces. If you can get them without imbuing, then you can add 5 properties to each piece, otherwise, less.
For example, these numbers divided by 6 would mean you need, on each piece, an average of:
Head: 10/11/10/9/8
Neck: 10/11/10/9/8
Chest: 10/11/10/9/8
Legs: 10/11/10/9/8
Arms: 9/10/9/8/7
Hands: 9/10/9/8/7
Of course, it is unlikely that you will get these number so you will make pieces with a Legendary tailor with GM Arms Lore and mix and match the numbers until you get this total, or get this total from imbuing.
You can fit in extra Imbuing Properties if you have a high resist on one piece and a high different resist on another to get the totals that you need.
If you have access to a spreadsheet, it helps a lot to lay out the numbers so that you can plan which piece needs which property. Google documents is free and will allow you to make a simple one without too much effort.
I'm sure this will confuse you since it confused me. Just use low cost ingredients and practice. It is how I learned Imbuing and I am still learning new techniques.