thanks David, I figured as much about using PS,
no biggie , I just hate seeing those spots in my render

yessir, I will be making this for real in the future, won't be until I get back to Thailand
which is 6 months or so away, and I'll take pics of progress just like the model.
Am actually glad I modeled it 1st as there are things I'll need to pay attention to when doing the actual construction.

I know the render isn't the best yet, worried about learning the modeling and uv'ing first
still have to get a grip on lighting, and some more with mental rey, which I'll have plenty more questions about
but considering I've been a member here for several years and finally progressing on 1st model, think I'm ahead of the game

thanks for the comments