I would take the rifle and suppressor to one of the good gunsmiths noted above for a hands on professional opinion. We can all sit here and look at pics and guess. It is extremely hard to do a complete diagnosis from pictures. Roll the dice and shoot it as is? If we/you are wrong, see below.
A good suppressor is a lifetime investment. Not worth a baffle strike taking a chance.
A barrel is a consumable and if you are lucky you will wear it out having fun and replace it.
Yeah, it sucks to lose an inch of barrel you were counting on. But I think once you screw that suppressor on and shoot it, you will forget all about it.
21 might become your new lucky number!
Good luck and don't forget to post a follow up. We all learn from each others mistakes and triumphs.
I've made worse mistakes, if it makes you feel better.