For the prayer, I would suggest getting atleast 70 for piety on bandos. For the other boses, is there some specific reason why you picked level 65? 64 restores exactly the same quantity per dose of RuneScape gold prayer potion as 65 does, so extra levels truly don't make a difference till you get to 68. Strength is not as vital for boss searching as people make it out to be. Concentrating on defence and attack will help you more than strength will. Your gear appears alright. It would be a fantastic idea to invest in completing RFD and getting yourself a pair of barrow gloves.
As you said you mentioned soloing, deliver a ring of riches. It will allow you to get better drops. The ring of life is far better to attract if you're lootsharing with someone, cause wealth does not work with lootshare active. You'll have difficulty getting any great specs with a dds on bandos, dmace hits more often on larger creatures. Only exception would be if you don't possess a bgs or a tasset to protect from bandos minions. Even after that, you really don't need them believing the kill count is only a small part.
The remainder of your stocks are fantastic for starting. Editing them a bit as time goes on to match you better. No one will tell you your ideal inventory, just trying it yourself can give you a hand with that. They can only tell one of the crucial things. You've got themso know you just need to experiment a little to perfect them for yourself.
Make a bid to acquire a LESSER demon task for killing zamma. There's other items you can wear that'll help you out with the boss a lot more than this. This amulet is only good while obtaining your killcount. Even thenit slows it down because it doesn't really help you. A good item for armadyl, would be to bring zammy bracers instead of a coif, and get an arma helm. It's somewhat more affordable and frees up the amulet place for something somewhat more cheaper.
No point on brining a range potion to get armadyl if you're soloing. You are going to be using numerous sarabrews. The moment you pot up you will have already diminished your range. You'll befinit more by bringing extra sara brews. The exact same may also use to sara. Bear in mind that the 3:1 radio. 3 doses of OSRS Gold For Sale sara brew per super restore dose. Generally 1 superb restore (4) for ever 4 sarabrews (4). You can give up a super restore for sara, cause you're there for a while. The alter will give you more prayer on a single solo trip than on other boses.