Page 7 and 8 should tell you the exact length, hose size, and fitting size. Looks to be mostly 1/4" NPT And one 3/8". The lines themselves can be either the fitting size or 3/8" hose with 1/4" fittings. Your better off just using the same size hose as the fitting. Even if it is 1/4" fittings with 3/8" hose, it's only going to flow as much as the 1/4" will allow. Therefore, it's not worth the extra money bumping up the size of the hose
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OE, what manual are you using? my "PARTS AND OWNER'S MANUAL, SERIES 25 LOADER, MODEL B219" documents the controls and procedures. On page 22 & 23 the "ASSEMBLY - LIFT FRAME AND HYDRAULIC HOOK-UP" schematic and "B219 PARTS LIST" have a similar image and list as in your Kubotabooks post (but your find is a much nicer and more complete image!).
I think perhaps I haven't made a sufficient effort to distinguish between the steel hydraulic lines and the rubber hydraulic hoses. I have found lengths for the hoses, and I appreciate confirmation of those from other sources.
I cannot find the lengths of the steel hydraulic "oil lines", as the parts list identifies them -- I can only find references, for example,
Oil Line, RH Long.....70050-00144
If I am overlooking the steel hydraulic oil line lengths (a serious and well-documented shortcoming of mine), please point me to the location. (If you could do it the way
NorthIdahoWolfman does, using yellow highlighting to show the item, I would be ever-so-grateful!
Use a garden or air hose, you can dress/tie it in real nice just like a hydraulic hose, then mark it with tape or a sharpie. Once your happy remove it, lay it out straight and measure.
Oh, Kenny, you're a treasure! Fank yew, fank yew, fank yew, frum de boddum uv mah hart!