>>3517796It's gonna suck, dude
Here's a comparison I made of a slide scan. Scan on the left is a 2400 dpi scan from a Canoscan FS4000, right is an Epson v550, both enlarged to 100%. Only time you can get away with using a flatbed is if you're going to be scanning 120. Otherwise, use a DSLR or get a dedicated 35mm scanner.