I don't know if the IRS will be looking for two k1s or just look at the totals. I bet the totals (assuming the same SSN/tax id).
If the revocable living trust is just yours (you or the settlor/grantor and you have the right to revoke the trust), it will be a disregarded entity as far as the IRS is concerned and you use your SSN for the trusts tax-id. If so, then I would do as you suggest and only enter a single K-1 in TT. You are correct that will keep your passive activity/basis info all in one place and make everything simpler going forward.
See e.g.
https://atlantislaw.com/7-irs-rules-that-may-make-your-trust-a-disregarded-entity/
The IRS treats all revocable living trusts as disregarded entities.[i] This means that even though a trust legally owns the taxable property or taxable income, it does not need to file a separate tax return. This is because the IRS disregards the trust entity. Instead, the IRS treats the grantor of the trust as the real owner of the taxable property or income.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"