first post and fairly new to casting

In typical fashion I always seem to bite off more than I can chew as they say. I'm currently working on a motorcycle project. I have a little bit of experience on mold making and casting on very small objects , I molded and cast my own clear brake lens for a brake light. I wanted to get some advice to see if what I'm trying to accomplish is even possible . I have an aluminum finned primary cover ( see attached photo )   that I would like to create a mold off and the cast in clear resin to obtain something similar to the second picture attached. I know the clear primary in the second picture was made by hand with basic hand tools out of thick clear Lucite material . I know I could have these parts machined or CNC'D out of clear Lucite but need to keep cost in mind . I appreciate any feedback and direction  to see if this is even something that can be done with Alumilte products .

thank you,

Tom