50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance. 50% of the customization payment will be submitted in advance.