At maximum quantity of time: 22 * 75.7 = 1,661 in 52 seconds. 52 * 2 = 104(the time) 104 also = 1 min 44 seconds. That means it is possible to OSRS gold average anywhere between 3.25k xp - 2kxp per minute... that is if my mathematics is accurate.
I don't know whether you are F2p or P2p, therefore when you said Bronze Gloves, I don't know whether you meant FoG Gauntlets, or RFD Gloves. I looked up . I'm also assuming you are a 1 Def Pure or some of the kind. I also looked up Iron instead of Bronze, because both need 1 minute, and settling for Bronze when you can access Iron is dumb.
Security Gloves: Need to complete Strong of Player Safety, get 10k in the torso along with gloves, better than Leather Gloves. Leather Gloves: No prerequisites, but the gloves. Apart from the coloured ones (They have the very same stats too), there's nothing specific about them. Iron Gloves (P2p): two RFD quest have to be finished, +3 Str, fantastic Def bonuses for the item,"best glove" from the ones you asked for. Iron Gauntlets (F2p): 30 Tokens to buy from FoG, 5 to recharge (No idea how much they cost uncharged in GE),"best" F2p gloves for melee defense. I would utilize Green Vamps for F2p, as you don't need to fret about FoG Tokens and them being charged or not. They also have great bonuses for your merchandise. For P2p, Iron Gloves out of RFD, however you can get up to Addy using 1 Def. If so, then buy these things: Ghostly collection, Arcane Stream Necklace, Addy Gloves, Wizard Boots, Seers Ring (Id ), Mage/Zaros/Zammy Book, Ancient/Light Staff, God/Fire Cape. I THINK the above is the best magic bonus for a 1 Def pure (Need 70 Atk for Staff of Light.) There's also those Dung things that increase spell something or power. Chaos Gauntlets from Family Crest may also be of use, as they increase spell power also. I am searching for more things that will help you out... supposing you're magic based.
I would also like to point out, you answered your own question. . .making the ribbon rather pointless. But, you could be like me and just like to affirm your thoughts, in that trigger, I applaud you. Searched better things, and only additional info in buy RuneScape gold general... God Robe Bottom gives same incentive as Ghostly Bottom, but also gives a Prayer boost. God Mitre provides a +1 higher incentive in Magic Atk than Ghostly Robe Top. SoL provides the 5% Spell power increase too.