I have duplicated a few Lyman and other molds, but it is very time consuming in most cases, if I have to machine out special patterns. If I have a sample bullet in hand I can often stack patterns which I have on hand and produce something close enough to the original that you would be fooled if you didn't have an original sample holding tight alongside the new one.
I cannot make a hollow point mold, but if that isn't essential to you, send a sample bullet, I'll look it over and quote you a price. Understand that hollow points often are important to accuracy, as they take weight off a nose that would be too heavy to shoot as precisely if solid.