I just got this 1958 gmc napco panel 4x4 and i will be putting in a 350 sbc...i know this truck must be quite rare as ive looked all over the internet and i havent seen another yet! i would appreciate all input and any information on where to find parts for the napco power pak would be great! i will send anyone any info i can give along with pics from my email addy...what i would like to know is why the suburban has the steel floor but the panel is wood? is the floor still available in metal or will i have to make one?