My favorite bulk loader is the
Alden 74, made by Queen City Plastics in Cincinnati.
This model is fairly common on eBay, often in like new condition, at reasonable cost.
There are cheaper models, but this one works very well and has never let me down.
Reusable 35mm film cassettes do wear out after multiple uses. Always examine
the light baffle flocking where the film passes out of the cassette for dirt/wear.
These are getting harder to find, so when I see a good deal on eBay I stock up.
Start saving your old plastic film cans now to store your bulk-loaded film.
Use strong tape to fasten the film to the spindle. Masking tape has failed me at the
end of a roll; then the camera could only be opened only in a changing bag.
I prefer quality electrical tape, like 3M Scotch Super 33+, which has never broken.
It adheres tenaciously yet can be peeled off before development leaving no residue.
You will need a changing bag to install the master spool inside the bulk loader.
After that everything can be done in daylight, preferably subdued of course.
Don't skimp on the changing bag. Buy new. Minimum size should be ~27-30" square.
You may eventually start developing film; loading the daylight tank requires more room.
Chris