HI Chuck!
I was unsuccessfully experimenting in the past, trying to liquefy some styrene, to use it as a bonding/filling agent, till I saw a couple of videos, explaining not only how to do it, but also stating that liquefied styrene can replace filler at some instances, so I reluctantly started to use it, "expanding "my horizons a bit time after time.
That said, I consider liquefied styrene a coarse filler, needing the help of "normal" filler and that magic product Mr Surfacer at the final sanding/smoothing phases.
The Vampire is indeed a nifty little fighter, and the Hobbycraft kit seems adequate.
For some reason, this specific kit, forgotten at an Athens hobby shop and bought at a sale price, was begging me frequently in the past to built it. Well, I did its favor, and I am not disappointed so far.
Thanks for supportive commenting, my friend @uscusn!