Welcome from NE GA , not exactly sure what your question is ? I have been welding and fabricating 25 + years and have built trailer,s in professional shops and noticed a few things that were done incorrectly . First thing NEVER rely on butt weld,s for tongue of trailer ! not to worry though this is a easy fix , just get a couple more pieces of channel and run them underneath the current ones , make sure they run the entire length of the tongue from outer sides of frame and taper them off so as to end about one foot from hitch . this will greatly strengthen and support the tongue . Next thing , i would weld in X braces at both empty box,s between the axles and box in this part of your frame . you could get a couple more pieces of 6'' channel for this , if you are at all unsure of your [welding capabilities ] this is were to get some experienced help ! Also if your trailer is not going to have perfectly distributed weight the area over the axles will probably need to be strengthen as well . Third thing every cross brace should have at least a 12'' x 12'' gusset on both sides for support . I hope this will help you out .