Need script, probably in php, where clients would be able to book hours in a monthly calendar, see total cost per order. Possibly integrated payment through PayPal, but not necessary. If you need inspiration, look at: hotels/c0m, etc.
Will only consider bidders who has more than 50 projects in ScriptLance history. (Too many others has failed when it comes to the simple scripting for booking dates/hours, so I am sick of taking risks now.)