Re: Realistic Medieval/Saxon Costume Help!
Speaking as a costumer, what you really need to decide is do you want it "real" or merely to "look real."
The former is going to cost you big bucks and/or a lot of long hours of work and learning new skills, and much more intensive research. And how "real" is real enough? Are you going all the way, down to weaving the appropriate kind of cloth, from authentically sheared, carded, and spun wool, for the clothing and hand sewing it to an authentic period pattern (as derived from extant items)? Or is it okay to simply mimic the garments using modern fabrics and sewing methods that look similar enough to pass basic visual inspection by anyone who hasn't personally done extensive research on the subject?
There are people who make real, period-authentic chain mail. And you pay appropriately for such a labor-intensive project. There are people who make less authentic chain mail that will, nonetheless, look "real" to anyone who doesn't know the difference (i.e., the vast majority of the population). It's still labor-intensive and costly. And there are numerous quick and dirty ways of faking it, with a wide range of visual/textural/material degrees of real/unrealness.
Chain mail made for theatrical productions, for example, can look quite good at stage distance, but much less so face to face in good light.
So, decide on the degree of realism -- and if it only has to look realistic, then decide on how much realism is needed to achieve that look. And then decide what you need to flex on to make it affordable, and achievable, within your given time frame of assembling it, and the intended usage.
Then, remember Google is your friend. Someone out there has already made what you want, in all degrees, and information on how they did it is likely online. :)