Build a Web one pager house and options selector on wordpress as on the image in attatched file based on 4 houses models and the options (3) he selected. Adjust the price depending on the selection.
Save the informations in a spreadsheet on the server. Backup this file each hours.
On press on Submit button, send a email to the customer with the selected options with Mail Chimp. Make the test the be sure that we won't arrive in the SPAM box.