Anyone know much about the leader bikes and frames, I was looking at the leader 735TR bike frame to use a a build my own bike project. Any comments?

they look like junk to me.

https://bikeforums.net/search.php?searchid=3433888

If you search around (in the road forums), a lot of people have had great luck with them. Don't fool yourself about what they are/aren't, and you'll be happy!