Ah, Mr Johnson. May I call you Jack?
The reel of 90m is too big for a bulk loader but not huge. The film base is much thinner than fp4 for example. As Mr Windy does, I roll off 30m or so - - I guess the length - in a dark bag as you suggest then insert that into the loader. Voila!
Be minded that this lovely film has no halation layer so can 'bloom' in very bright sunshine - but Mr Windy and I don't have too many issues with up here on our island homes. Develop in Rodinal is my suggestion. 1:100 for an hour-ish when when shot in bright light, and I go 1:50 for 21 min otherwise.
Hope that helps