@mhuiz I'd agree with what
@robert72 has mentioned in relation to getting the pump. The team will have a set of criteria for you to meet to get on it. It will be easier to justify if your levels are all over the place as a result of doing it, so go with that at first. Play the game to their rules to get what you want.
Once on a pump, LCHF is easy (I've done it on and off for periods of time, and generally eat low, if not very low carb now).
Ratios, basal rates, etc are all individual, so it really makes no difference what mine are. Yours are highly likely to vary from those. The only statement that I would make is that when I eat LCHF, I have much lower bolus requirements. As you might expect!