This is a collection of various Commodore 64 ROMS such as DolphinDOS, SpeedDOS Plus, Master ROM v3, DeadTest ROM, Memostar, TurboTrans SD2IEC22, etc...  See screenshot #2 for a list of the ROMs in the pack.

Check out PCBWay for a nice Kernal ROM adapter.

This Commodore 64 Kernal is a variation that supports disk functions mapped to the function keys, leaving all the tape and rs-232 functions in place.

I copied the character ROMs from a selection of vintage computers and created custom character sets for the C64. These are perfect for VICE or the Ultimate 64.

The collection or ROMs includes character sets ripped from the Amiga 500, Apple II, Atari 8-bit, CPC, MSX, Sinclair, and TeleText. Also included are "fixed" character sets for the C64 and C128 (yes, there are a few mistakes in the original ROM), the Loadstar character set, and a custom character set used by the Speedscript 2.0 word processor.

A fellow Commodore user over on the Facebook Commodore 8-Bit Repair and Upgrades channel noticed that this version of the Dolphin DOS 3 ROM wasn't available anywhere on the net and kindly dumped an image.  If you are looking for a project and want to build a Dolphin DOS setup, check out this website to get started.