Another piece of equipment that uses saves is the bombs, grenades, and dynamite found on page 267 of the DMG.
Specifically, the campaign in question uses a homebrew D&D Modern system based on 5e, where your sheet has been absolutely amazing so far.
The items in question are shotguns (Dex saves to avoid damage. Gives shotguns a unique niche) and various forms of grenades. Having shotguns as attacks on the old sheet works really well, because it supports the saves and ammo very easily. Having them as equipment would be less convenient, but it's acceptable seeing as we can just put those things at the top of the equipment box and they can have a number of uses on them.
I'd prefer having the option of "save only" attacks, but will gladly accept expanded equipment covering this.
Pushing the current version of the sheet WILL break a campaign I'm participating in at the moment, however we can work around that for the moment until we have a proper way of doing things.