You can, of course, use those images - pictures and drawings - for your own modelling, that is what they are for and you are one of us now.
As said, please have no hesitation in posting to the "Tanks" section with your further needs (and with your models!). Almost everybody here knows more than I, I am a "Legend" merely because I have a big mouth!
Enjoy the forum.
P.S. Also feel most welcome to use the "Modelling" section to request and share construction tips.