The first part is just dandy.
Albeit 2 hours later - at the peak of the insulin (depending on what analogue you are using) you should be taking in a 100g of chiefly lower GI carbs. The maltodextrin will work, and I presume that is what your using post-workout also, but you should at least try and get around 50% of the 2-hour mark carbs from a no fat, low GI source like cream of wheat.
You don’t take more insulin the 2-hour peak, as that is when the initial insulin's concentration will be the highest in your body. Plus the window of insulin (>Log) is a min. 4 hours, not 2. If you don’t even know the half life of the potentially hazardous compound in question, you should seriously reconsider using it.
Don't use R-ALA at all while the insulin is active, the last thing you need is to unpredictably supersensitize your glut-4's and increase the effect of the insulin by a variable x amount more. Once your cycle is over, or is the insulin’s window of action, ALA would conceivably be quite useful in resensitizing the receptors you downgraded with the exogenous peptides.
If your confused about anything, don't touch the compound.