If it's stupid but works, it isn't stupid.
http://stackoverflow.com/questions/37069551/mysql-add-data-from-one-table-to-another
uc_products
----------------------------
vid
sell_price
uc_product_options
----------------------------
nid
oid
price
uc_products
----------------------------
vid
sell_price
uc_product_options
----------------------------
nid
oid
price