Bracing Help

[hink]

I got a tank for free a 230 tank only problem is one of the center braces is melted and broken so I cut it off cant patch it and from what I read it never works anyways. So what I am wondering is can I remove the entire top brace and euro brace this tank? glue or bolt a thick piece of plexi glass to replace the broken cross member or use a steel cable to wrap around the entire top and tight bolts (would have to do this every so often as I imagine it would slack after a while and would have to be careful not to be too tight as to break the tank or 4th and least favorite option figure out who made this tank and order a new brace