Synonyms for Custom-built:

adj.

all (adjective)
made-to-order.
built to order (adjective)
customized, custom, custom-made, made-to-order.
custom-made (adjective)
made-to-order.

n.

cash-and-carry, branded, commercial, commercially, custom, cut rate, agree, brand name, consumable. artifact (noun)
custom-made.
custom-built (noun)
customized, custom-made, customised, made-to-order.

Other synonyms:

branded, cash-and-carry. consumable, brand name, commercially, cut rate. commercial. custom. Other relevant words:
branded, commercially, brand name, custom, cash-and-carry, consumable.