I will provide: 

1) A save the date jpeg which will include the drawing of the museum and hand drawn lettering

2) A wedding invite jpeg which will include the same drawing and updated hand drawn lettering for the wedding invite

When the time comes, I'll need from you the text in the proper font that will go on both the save the date and the invite so I can trace the letters. Tracing the font will be easy so the turn-around time will be quick.