The best value by far is to swap the parts over and then sell the frame. Depending on your area, selling the PD7 as is won't get you anywhere close as you are then in the parts seeking market - which is the most expensive way to buy and build unless you are really patient.

Let's say you sell the complete PD7 for $250. Look around for wheelsets, tires and tubes. You could blow half your budget easy and you don't even have brifters yet. You'd be surprised how fast $15 here and $25 there adds up if your budget is tight