If you can't take it apart and clean it, don't buy it.
I believe the complete opposite of that statement. After having 2 takedown cans and and 3 welded cans. I've had the take down cans for over 10 years. If you don't clean them constantly you will trash the threads like every 30-50 rds depending on what your shooting. They also can't handle the pressures that welded suppressors can therefore you can't use them on sbr's/pistols or short barreled magnums. Ive met comp shooters that have over 15,000 rounds through some suppressors and have never cleaned them.
And if you do feel like you need to clean your suppressor there are several ways to clean a welded can. For a a full Ti can like the op is looking for. It's as simple as putting a cork in one end and filling it with clr.