Need logos combined to project new brand image

Hi designers, I have 2 logos a client uses in his accountants firm. One is for the firm itself (Avance) and the other is for it's business development side (10x). Samples of both logos attached. They want to co - brand, that is combine both logos to project a combined brand. The successful designer will be given high resolution copies of the supplied logos. On successful completion, the following will be needed. 1/. high res source files in psd 2/. formatted to use in a computer screen background 3/. for email header 4/. for web site header I want colour options for the "Avance logo".. Is the orange and blue the best? The 10x MUST not be altered in any way in either colour or shape. Samples and prices are required to select a successful designer. Full copyright ownership passes to me on full payment. Thanks