Do any of you have any plans or instructions or a list of what I would need to build a portable steel gong. I want a 20 in tall by 24 in long target. What type of steel to use etc.etc.etc. This will be used from 100 yds out to 600 yards so it has to be portable enough to put in a pick up truck or ATV and somting one person can handle. I will be shooting a 300 wsm and muzzloaders at this target. Also the type of steel I need for the target would be appriciated. Thanks Joel