The Big A sells 200-proof denatured ethanol (100% ethanol/isopropanol blend) in a four-quart pack for $36 delivered. I get that and keep a bottle in several places around the shop so I can always have one handy. I have found this to be the best cleaner/solvent for uncured epoxy. (see tip below)
The pricing below is based on a search from The Big A. These all work fine for clean-up and blade prep.
Kleen-Strip lacquer Thinner is the cheapest cleaner solvent for epoxies. It runs about $23 a gallon delivered. It is a blend of acetone/ethanol/methanol. Works fine.
Isopropyl alcohol runs about $25 a gallon.
Denatured alcohol runs about $25 a gallon for fuel grade and $38 for cleaning grade. Fuel grade will work fine for blades. Cleaning grade is overkill, but some folks want their tang as clean as possible when gluing the scales on.
TIP:
To make an epoxy less viscous for pouring down the tang hole in a full tang handle, thin the epoxy with a little of the 200-proof alcohol. Best done with a slow cure resin. Let it sit a few minutes for the alcohol to vaporize some and then insert the tang. Clean up the over-run with paper towels, and then with paper towels wet with the 200-proof alcohol. Use a fresh paper towel dampened with alcohol for a last clean-up and let it cure. When the glue pot is gelled but not set hard, do a last wipe off for any new drips and set aside to fully cure overnight.