Thanks for sharing about your dc, and yes, that helps!

I am thinking that PHFHG would be a good fit for them, and your oldest can do extensions.

I think they will both be fine in R & S English 3, but you can have your younger child do R & S English 2 if you would like.

As far as cursive, if your oldest has had one entire year of cursive writing instruction, and has practiced it since then, and it is not his thing, I'd let him print. At 12 yo, dc usually know their preference in writing - whether that is printing or cursive - and they can choose it. Most boys do not choose cursive - I know of very few adult men who write in cursive. So, if he's tried his hand at it, and can write his name in cursive, and can read other people's cursive, I'd call it good and let him print.

If he has not had a year of formal cursive, I'd have him do one, and I'd recommend "Cheerful Cursive", as it not only helps dc write in cursive but also read different styles of cursive, as well as switch back between the two. For your younger ds, I'd do "Cheerful Cursive" or whichever handwriting program you want.

PHFHG will ease dc into reading half of their history and all of their science. It will give them a great one year sweep of history, and you'll get to use some amazing books along the way. It will teach them to independently follow step-by-step directions by using the guide as their own student planner and checking things off as they complete them. It is a great guide to do - I think you'll all enjoy it so much! The extensions will provide more challenge for your oldest, and you can choose whatever math level you need to for him. You can use Drawn into the Heart of Reading for their reading instruction. I'd have you 8 yo begin with Level 2/3 plans, and your 12 you begin with Level 4/5 plans. You can choose any level of DITHOR book packs for each of them, or your own books if you'd rather.

HTH - but what are your thoughts about this?
In Christ,
Julie