Acylal protecting group will be a good choice for aldehyde. Acylals are obtained in reaction aldehydes with most oftenly acetic anhydride. So you have:
If you use TMSOCH2CH2OTMS in the presence of cat. amount of TMSOTf, it should cleanly produce desired acetal and let ketone FG aside. Example of the standard protocol to follow, see: http://pubs.acs.org/doi/suppl/10.1021/ml300044f/suppl_file/ml300044f_si_001.pdf