Your quantity of buckets is not overwhelming. You might just want to stay with them. The tubing will get the sap to one place. It may cost you $6-$8 dollars per tap, maybe more.
If you can try to boil during the week when you have sap you will make higher quality syrup and get the sap out of th containers. Might be good to think about a rinse on the containers each week or when the weather is warm.
Regards,
Chris