I'd most definately melee them. Use a D Long if you cannot use a D Scim and do not have access to a whip. Remember to take your anti dragon shield. You can find a cluster of dragons east of clan wars. Keep all bones and dragonhide. When you are full bank at bounty hunter. Alternatively you could try the chaos tunnels but I cannot give you directions to them so maybe someone would be kind enough to post directions.
Get fletching you profit off of making yew longs last time I checked. Alternatively you could keep that money in bank and get 99 hunter which is fairly easy as well though you have to pay attention to the screen.
The falador knight part of Recipe for Disaster. Black Dragons take a long time to kill though. Greens are your best option. edit: I believe it is Sir Amik Varze. You have to make the creme brulee
There are either Baby Blues in the Taverly Dungeon. Or you could kill Baby Blacks in the Chaos Tunnels. Personally I'd just kill Green Dragons and Collect Regular Dragon Bones as well as Green Dragonhide.
Are you looking for just quick power training or are you wanting to make money as well? For powertraining I'd advise Rock Crabs at Relekka or Flesh Crawlers at the Stronghold of Security (Barbarian Village). For money, you could do hill giants and collect Big Bones or you could start training slayer. I think Vannaka in edgeville Dungeon assigns tasks at lvl 50 combat edit: at fleshcrawlers if you pick up various herbs and runes you can make some profit as well.
If they ever make it where you will need a Luciens Pendant to get to an area they will make it where you can reobtain it. They wouldnt want to make all the people that sided with the good PO'd
Before you consider tanking get 70 Defense. Setup I use: Sara Coif Black Vambs/Barrows Gloves Black Dhide Body Torag legs. Snakeskin boots Arma Pendant Broad Bolts (requires 55 slayer) Rune Cbow Unholy Book. Fire Staff Nature Runes 16 pieces of food tele tab Bones2peaches
I'm pretty sure that you can use the Assist option to make the helmet provided you have learned how to make them. Just find someone with 55 crafting and request assitance on them by right clicking. And it is an uncharged Black Mask.
One of my friends she lvled her attack from 95-99 by killing the armoured zombies from the Defender of Varrock Quest. She used torags with Whip, Defender, and Salve (e) and monkfish then when she was out of food she would bank at Bounty Hunter.