Foreign Income Tax Deduction on Non-resident trusts

[luvbritain]

I am a US citizen considering coming to the UK when I retire as ordinarlily resident and non-dom. I need guidance on the following:

1. After my folks are gone, my brother and I will be beneficiaries of annual distributions from a non-resident, Irrevocalbe Charitable Remainder Trust . I think that this is comparable to a "possession trust" (e.g., Trustees cannot decide when, to whom, or how much is dispersed). It appears that the USA / UK Double Taxation does not offer a foreign tax credit for trust income. Can I still take a deduction for taxes paid in the USA on trust income when I file UK income taxes? How would I calculate the deduction? An example would be really helpful.

2. Also, I will be using the Remittance Basis. If available, can I take a foreign tax deduction based on US taxes paid (maybe at a %) when I file UK taxes on the Remittance Basis?

Any help in this area would be really helpful. Thanks.