one thing to consider is if your trying to make up for hearing loss you'd be better served with an amp-preamp-integrated with tone controls more specifically one with variable cut off frequencies (Luxman made quite a few like this for an example). This would allow you to adjust for the areas your missing with out doing harm to the rest.
You most defiantly can plug it into a MM stage and get good results ultimately you may want to upgrade to something like that Iphono2 (I have one hits way above its price point), with the MC section you don't need the gain (most MC phono stages will have more then one gain setting fyi) but the flexibility to change loading is not trivial. You don't have a supper detailed cart with the Denon but the Denon is a great price per performance cart but its not going to give you what a better MC will so I would try it on your MM section and go from there as upgrades happen move up. ultimately enjoy the music and hobby
one more thing instead of the Shitt equipment you could find a great vintage integrated -receiver etc and get it all in one unit. Luxman, Sansui, Marantz older Mac's for a few to start with. Most of them will have both MM and MC inputs. if that's not your boat then lots of other offerings out there.
hope some one else can add a few i'm tired and brain dead right now.