No, it's going to be close. And a good defense one can politically hide behind is worth a lot, as politicians are valuing the Trump vote. But if you don't give someone a reason not to vote to convict, they might just vote to convict.
No, there's plenty of decent republican lawyers. Trump has had a shitty taste in lawyers since Giuliani, followed by the Kraken crazies, then this. You don't seem to see any flaws in Trump, just as others only see flaws in him. Both are bad.