DIY Glycolysis

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Step Five - Coupled Phosphorylation and Oxidation of Dihydroxyacetone phosphate

Not really possible.

Since dihydroxyacetone phosphate is a ketose there is no aldehyde group. You can't oxidise to a carboxylic acid and couple this with the formation of an acid anhydride with inorganic phosphate. That's why you're trying to isomerise to glyceraldehyde phosphate.