Don't know whether you can make that out but to save time I popped a line of glue along the lower edges of mainplane and tail-fins so as to drop the hydroskis on and next day I'll flip it over and filet the edges.
Note how tail assembly, lateral spars and hydroskis all terminate at the same place in order to satisfy one of Colin's golden rules viz. Person or persons building a drone shall ensure it can be stood upright, inverted or on a tail-end for maintenance or for storage at pain of imprisonment or fine not exceeding two-dozen Eccles cakes.
