You may even buy the acrylic glue from them and glue it yourself with a brush as it's not too difficult. They sell T4 and T5 lights too. (dama.com.sg).
The onli thing is the design of the hood to allow ventilation and ensure that there is no water splash into the hood too. For 2ft hood, ensure that your design will not warp after some time. Best is to buy a cheap PL light set and change it to T4 light tube inside.