Josh:
I believe Gary D. has it. For a Spanish of this value, any professional service is a net loss. If you want to clean the tubes, get a Flex Hone from Brownells. Order some Oxpho-Blue Creme while you're at it and use it on the (cleaned and polished) barrels.

Chances are the Spanish barrels are thick enough to take a light clean/hone safely.

With your own labour, you'll have a presentable gun again for under $100.

Best, Kensal