Yes do give it a try.
Just came to mind that you can also use a compass , or a divider & a protractor ( as used in geometrical constructions ) to make /measure angles.Just keep in mind that angles are governed by the lengths & breadths of a particular build & more often than not, are just a simple joining of points ( i.e. they are produced automatically once the general dimensions are set .... as in technical or engineering drawing ).
Look at it this way. 2 x 100 mm lines meet at 90deg , if you were to join the other 2 points, then the other 2 angles will be 45deg ...... but if one of the lines is made longer or shorter than the other 2 angles will change automatically.
Do share what you build & ask if you get stuck.
The most important thing is that if it looks right then it is, even if it looks wacky & goes against the laws of science... it is scifi afterall
Z