Plexiglass Pricing

So I've been pricing out plexiglass...

The plexi that is 3' x 6' is only .118" thick. That's not even an 1/8 of an inch thick, which will present a problem. That was the $44.87 a sheet one. Now I could get the same size at a thickness of .220" but the price jumps to $79.27 a sheet!!!!! Ridiculous! Now this is just at home depot...

So my other option was to get 42 .093" x 2' x 1.5' sheets and hang them connected like they were full 3' x 6' sheets. These sheets are only $6.97 a sheet saving me over $300!!!! And plus it might solve the bowing issue with the 6' sheets. What do you think?

I also priced out tapcon screws to screw into concrete and those are relatively cheap. Then for my floating shelves I'm only looking at like $20 a piece. So not too bad!!!

On to looking for mannequins and a counter now!