Help with a skimmer mixing box

[woodworker]

Hi
Everyone I was wondering if i can have some info on building a mixing box for a skimmer.I have some wood clamps but dont know what kind to use.Does anyone one have any ideas?As im looking at them i think the {jet fast jointing clamps} are the best for wood but will they work with acrylic sheets?I want to build a down draft skimmer heres what i have sofar.

4 sheets of transparent acrylic,and weld on 4 glue
this is how big i want it 13 inchs L 8 inchs w 10 inchs H