Why not? Quit fooling around with that puny MMX stuff and go big or go home already. It'll be a good test of your glassing skills.
(Hope I don't need the
)
I'de gladly build a Space Shuttle if I had the room and the resources, but I'm building stuff that's halfway decent in my living room, so doing a few FG tubes in the BT-5 through BT-80 Range is doable, and likely would not require very much release agent.
There are also some non-tubular parts that require molding, and they are even smaller, but to be able to mold them would be great.
I even have some molds made from available objects, but hesitate to use them as I can't figure how to release them once the epoxy cures.
I'm going to order a few cans of the 3470 next time I have money, and then you are going to see my building techniques advance to the next level.
Even if it is on a doable scale.
I have made so many messy attempts, and watch so many others successfully release molded parts on Youtube.
I plan to join the ranks shortly.