[stephaniesquires]

I am going to say that being that old it may not be tempered - and it will break if drilled. Glass will eventually leak also and needs to be perfectly level. Check out e-bay for a tank the same size - I got a 90 gallon acrylic, predrilled, with stand canopy and lights for $300. It will save you lots of peace of mind to know that your 'new' tank wont leak...