Deal Check: 2024 Tahoe Z71 finance

Just curious if anyone else has dealt with Chevy lately, or with Tahoes.

I have the following

2024 Z71
MSRP - $73,740
Sales price - $69,000 (6.4%)
Trade value - $3k positive equity on 2022 Defender 24k miles, good condition but tires are running thin and a few dings.
Down payment - $7k

The rub is the dealer wants me to do 84 months with GM at 8%ish…for at least 3 months…then I can refinance with my own line which drops to 6.5%. With CT tax at 7.75% my payment is basically $1k a month. If it was $900 or so I probably would have said yes but maybe my expectations are not realistic for Chevy financing.

Anyone have a comparable deal or data points?