Not sure Ucello Conti will stay in beyond the next set of declarations, very unusual for a horse to run in both the English and Irish Nationals in the space of a week or so. I'd certainly take the 20s if you can get non runner money back though.
Noble Endeavor is tempting at the weights, 3 lengths or so 3rd in the Ultima and 11lbs better off this time out.
Seeyouatmidnight is also tempting at 33s after his 3rd at Ayr last year and he had a decent prep run at Kelso a couple of weeks back, 2nd but giving away 17lbs . I think the 3m5f suits better than 4m plus as well.