John, Looks to me like you are having fun with this build ! I like seeing how you do your modifications and such. It is very interesting. Oh as an alternative to the baking soda /super glue filler. You might want to try something a bit different. I never liked the use of the super glue as it sets up and is harder than the plastic . So I put some plastic from the sprue in a empty Tenx7R bottle and add some solvent. Instant plastic filler. Which is the same density as the rest of the plastic. Caution ! Do not use the sanding dust off the bench. As it will most likely be contaminated from the abrasive you use. If you try that method ?Please let me know what you think about it. Be Well Gator