good idea, tough enough to take the chaffing. saw a presentation about mail lately that mentioned evidence of 'off the shelf' mail back in the day as well; maybe on Matt Easton's scholagladiatoria channel, evidence being from some record keeping and art work of the time. Ofcourse there was the tailored pieces as you mentioned and for the most part, like in any age the more you can spend on something one can get the quality, nice to see your vid, be well
One of Matt Easton's videos from quite a while back was one of the things that got me thinking about lighter weight arming jackets. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SMlur_1dgqY.html
Also, something I noticed a bit was that because the Judo gi has wider sleeves than the Jiu Jitsu gi, it seemed to mitigate the floppiness of the maille sleeves a bit more.