Hi there! My english is not native, so beware.
How to disable bloodmoon?
Well, just not enable it in first place.
Start new game, put paraglider via save editor or trainer, and...
Do Not Activate Plato's Tower.
Like at all.
What are the odds?
Eternal day. Always 11:00.
Cannot rest at cooking pots or campfires, just no such a menu.
Can rest till evening at inns, and there's 21:00, but just for second, then immediately 11:00.
No heavy rains or thunderstorms, just at Zora or at Faron where it's required by plot.
Cannot activate shrines, but can detect them though. So no magnesis, cryonis, stasis, telebombs.
But you can upgrade at Akkala to telebombs+ and statis+, and they works.
Also you can edit save file.
0006F97B 00 01 Magnesis
00008FF3 00 01 Telebombs
00050C93 00 01 Cryonis
0006800B 00 01 Stasis
No blood moon, kill all monsters.
No fasttravel. Almost! Only to beasts, hateno lab, akkala lab and resurection shrine.
There's some minor glitches, like people talking about towers, but there's no towers.
And of course major's one with Impa, but game still beatable.
Also some quests are required to proceed
at night ( get some insects that available only at night, but you could use save editor )
or even bloodmoon ( Naked at bloodmoon )
or particular time a day ( Rito's heart ).
So they do not work.
Even without runes, you could go to Ganon and kill him with his Ganonblights.
To kill Fireblight Ganon, use 4 octorock balloons and fire chuchu instead of telebombs.
To kill Thunderblight Ganon, use 4 octorock baloons and metal sword instead of magnesis to short cirquit.
Alternatively!
Start new game, activate Plato's tower, but do not descend!
Because after descedning you get quest from oldman and time starts passing.
Use trainer, to teleport to shrine of resurrection or basically outside Plato's tower.
Proceed as usual, obtaining runes, but do not enter to proximity of Plato's tower,
because you get quest from oldman.
But you still need paraglider to leave Plato, so use trainer or save editor.
In that case there's towers, working shrines and fasttravel.
Thank you, for reading.