depends a lot on what type of fittings you have to deal with...it's basically a hydraulic line.what pressures are you dealing with?
i'm thinking something along the lines of a shop that can build steel braided brake lines.any shops in town that deal with custom motorcycles?they often have to get wierd stuff custom made on a regular basis.
since your going from trans to frame over such a short span you definitely want to use a flexible line.don't try to run your line directly from the trans to the master...give yourself plenty of extra length,and run sort of a long "u" shape when you plan your layout.the trans/engine combo is obviously gonna move around a lot more independently than a frame mounted master cylinder.you need lots of room for flexing.
what i'm thinking is you will likely need a lot more than 10".
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It seems, in fact, as though the second half of a man`s life is made up of nothing, but the habits he has accumulated during the first half.
Kind regards, Ayax
Diceus