The only problem with RDM melee is we have to use a OA3-4 sword in order to get TP at a respectable pace because we can't hit very good double attack rates and we can't get a good store TP number. We spoil mobs with TP feed worse than spoiled teenage girls at a shopping mall. Bad analogy, but still. The only thing that would help us melee at this point in time is a way to feed less TP to monsters.
That's just a problem with your melee; offhanding an OA2-4 with Almace is just about the worst thing you can do. Bad DPS, dilutes ODD procs, feeds mountains of TP. If you're going to insist on Dual-Wielding, make a STR sword, you'll see better numbers. Should really be single-wielding, anyway.
Other than that, any form of CDC puts us at very good levels. They're making WoE easier to do by the looks of things, and it's already pretty easy compared to what it used to be, so I see no reason why Badelaires are out of the question.
CDC alone might make nice spike damage in Abyssea, but honestly you can get into the same ballpark with Evisceration and a good dagger off the AH; the real benefit of Almace is the Aftermath, as the majority of our damage comes from our melee swings. Badelaire can avoid embarrassing itself in Abyssea with Evisceration+1 WS numbers, but outside it's pretty much trash. I mean, if Badelaire was much easier to acquire than Almace I could understand, but.. yeah, there's no reason to ever make one. If you're gonna sit through the first 9 trials, man up and make the real weapon.
RDM can attain an almost static 50% reduction to recast time, SCH can over shoot this for a total of 60% reduction under Alacrity (provided you are wearing loafers and keeping dark weather on yourself)
MACC is a joke, any job with access to mage gear can hit close the MACC cap on legion mobs, which is why my BRD/RDM can land slow/para/blind despite having only 150 skill (from /RDM.)