Check out the Old Fishing Store from  LEGO Ideas. The old fishing store is listed as Building Set #21310.

This cool set has 2,049 pieces, so its not for the faint of heart. Plan to spend the entire rainy day with your child constructing this one.

About LEGO Fishing Store

The LEGO Fishing Store 21310 set contains a total of 2,049 pieces and is ideal for display and role-play. The model has two removable roofs, an opening back wall in the shop for easy access, four minifigures, a cat and three seagull figures. The minifigures include a captain, fisherman, fisherwoman and child. The LEGO Fishing Store 21310 set also has many other details and elements, including steps to the front and side doors of the store, railings and a ventilator to fire-up the imagination.

The LEGO Fishing Store is designed for children ages 12 years and up, but I'm sure your 10-year old can manage.