hey mate yeah the hood is pretty easy , say if your using plywood for the hood just cut it to say 140mm to 300mm depends on how high you want the hood , i used like a VJ board and cut it down to 240mm and then i cut it to the length of the tank and added 2mm for clearance . do the same with the sides . then with the skirting bits i just sat it down 20mm on the bottom and for the top just sit it up the thickness of your door so its all flush. get your mitres right and glue them . i added some like 45 degree blockes in the internal corners to keep it square and strong about 100mm by 100mm . then just cut the fixed panel for the top back of the hood ,then cut your door 5mm all round smaller. thats about it . the back is all open to run pipes and etc . you may need a support bracing piece through the middle if it sags depends on how wide your tank is . i wouldnt on yours . sorry for the mm i dont read in inches. all up the hood cost me about $50 , if u need a sketch and more photos just let me no cause it might sound a bit confusing in words lol .