If the property is sold for the purposes mentioned in Sections 4-751 and 4-752 of this title, the guardian must apply the proceeds of the sale to such purposes, as far as necessary, and put out the residue, if any, on interest, or invest it in the best manner in his power as provided in the Oklahoma Guardianship and Conservatorship Act, until the capital is needed for the maintenance of the ward and his family, or the education of his children, or for the education of the ward when a minor, in which case the capital may be used for that purpose, as far as may be necessary, in like manner as if it had been personal estate of the ward.
Okla. Stat. tit. 30, § 4-753