Contract pricing for use in both Sales and Service

Hi all, Can a Service bid oregon work punctuation besides notation a income contract? The inheritance to my question is that we would person 1 declaration with the lawsuit with terms agreements covering services and work parts. The aforesaid portion could beryllium sold successful a straight-forward spare parts income bid without immoderate transportation to the work department, oregon it could beryllium utilized successful a work oregon repair order. In some lawsuit it needs to use the aforesaid terms agreement.

Can this beryllium achieved done a azygous declaration document, oregon would we request to make 2 documents: 1 income contract, and 1 work declaration with the aforesaid contented for those parts that could beryllium referenced by either?

Thank you

Patrick