Framing the weights should be fairly straightforward.
Below is the 'At A Glance' card from the RP site. I ordered it by OR (hope it transfers across with the link - if not just click on the OR column and it should do it automatically). We know Mr Smith compresses the top weights.
My guess is that he'll give BDM 11-10 (top weight) and let DR run off the same. He might let DR run off 165 / 11-10 and allow BDM to run of 164 but apart from that I think the only other alterations will be with anything with very good course form or which shows more between now and the publication of the weights. There's a slight danger he might hit Blaklion with an extra pound or two but I doubt it off such a high mark already.
I'd also suggest anything on 142 or less (from Arbre De Vie down - and that includes Thunder And Roses off just 141, which should please Marble) will need to show some form pretty soon or leave themselves open to missing the cut.
So you can pretty much go ahead and get studying.
https://www.racingpost.com/racecards...69/at-a-glance
Edit again - it looks like the ratings of the Irish horses are as per the Irish handicapper so I'd add a notional 6lbs to the ratings to those rated below 150 (above that I think the mark is agreed by both the Irish & UK handicapper) and then adjust once the ratings for this race are known.