The phrase "a modest sum for" is correct and usable in written English.
It can be used when discussing the cost or price of something that is considered reasonable or not excessive.
Example: "The painting was sold for a modest sum for such a renowned artist."
Alternatives: "a reasonable amount for" or "an affordable price for".
The official biennale budget was less than $1 million, a modest sum for an exhibition of nearly 300 works.
O.K., how about giving people the option to keep their bank information to themselves if they are willing to pay a modest sum for the service?
The Yankees offered Hernández arbitration and they do not expect him to earn more than $3 million next season, a modest sum for a pitcher who could win 15 to 17 games if he returns to his form of two years ago.
This was a modest sum for a 1980s major label album; however, it quadrupled the amount spent on the band's previous album, Surfer Rosa.
I think that some fortunate, or sharp-eyed, buyer on Saturday must have recognized Markiewicz, and paid -- to my mind -- a modest sum for what is likely a self-portrait of the artist as a young woman.
Why?... So much is at stake". Frank Schubert, who is overseeing part of the No-on-86 campaign, said that although he has no idea how much money Simonini was offered, the campaign would have paid the doctor only a modest sum, for the time taken away from his patients.
Thanks to producer Mark Carliner, moreover, the production costs of nearly $10 million--a modest sum for a theatrical movie but absolutely soaring for TV--are visible on the screen.
Planché named a "modest sum" of £10 for the privilege which Murray said he could not pay, citing the poor financial situation of his theatre.
Additionally, while board members are paid a modest sum of money for their work in New Zealand, both governing systems do not fully address the issue of board members' financial cost of governance.
For example, in order for an interpreter to get refugee resettlement benefits from the U.S. government (i.e. a modest sum of money meant to pay for first month's rent on an unfurnished apartment), he must apply for said benefits through the State Department and agree to have his flights from Afghanistan arranged via an organization called The International Organization for Migration (IOM).
I long for a sociological survey of those who take up the current Waitrose offer of a Valentine Day's dinner to take home, for a modest sum, to cook for yourself and your loved one.
