Glad your project is progressing Dan, it's gratifying to see something of this nature take shape!
My experience with stitch'n'glue so far hasn't lent itself much use of traditional rasps. Those epoxy bumps & dribbles are mighty tough, yield to block plane properly tuned & applied but more often - like ~ 90% more often - I've reached for a ShintoRasp thing I bought decades ago when a'building my first boat.
A new one joined it during my Waterlust's build, owing to the eventual dulling of the teeth on that first one after some 50 years' employment. I recommend with vigor having one handy for anyone messing about with boats, wood & epoxy.
Next steps are to add the food pads, interiro filets, fiberglass the floor and then install comings....stifffeners and doublers too then ready for hull and deck glass....
Floor, keel stiffener and and rear bulkehd installed, one closer up and one overall view looking aft; next step doublers, then filleting lots of seams, then glassing the floor....