The 190g I have now was my dads. Years ago the center brace let go and he found it lying in the bottom of the tank one morning. That is ultimately why he took the tank down but he didn't even do it right away
. Anyway when I picked up the tank I had it rebraced (and drilled for a return bulkhead). Although by the time I took the tank in paid the bill and picked it up I realized I should have just saved up a bit of money and had a new one made. There is no reason you can't fix it yourself but if this is an opportunity to get a new tank I say go for it.