I like the open source nature of the KJV. With a concordance you can see the literal connections of Greek, Hebrew and Aramaic.
With regards to language. Modern humans are about 30,000 years old. Written word is relatively new.
Any translation of the Bible that has documented links to older texts is good. Whether you agree with the syntax is not important. Especially if you are basing the reasoning on "modern language". Our modern languages have been obfuscated with slang and inverted meaning.
I've studied, Sanskrit, Pali and ancient languages for many years. I'm no scholar but I get intuitive meaning from the lay of concepts and the grammar as well.
On the other side of this coin is the very real concern of modern publishers who are captured by occult and dark occult groups who control New Age, Religious and secular publishing houses. This is a very real thing.
Ultimately if you are getting on your knees several times a day praying to God without artifacts, beads, alters, statues, icons and pagan practices, you will be in communion with the Lord. With Bible study you need to have clear documentation and reference to the ideas presented. Any translations need this and the original Greek, Hebrew, Aramaic, Latin and other languages need to be accessed and nearby.
It sounds like you have a good base and you've found other pathways to support your foundation. Be diligent and cautious of Satan. He is the ultimate, clever, deceiver and he would love more than anything else to have word of God diluted into a novel literature.