reworking stock heads or buy aftermarket?

I have my motor dis-assembled. I was having timing issues and vacume leak that i couldnt find. Now keep in mind that i am on a poor man budget. Cylinders, piston skirts, crank bearings look good. Pistons have dents from valves. Idk if this was from previous or current set up. Also bent pushrods. The pistons have one dent each. Nicks on the front and back pistons are on the far outside valves and the 4 inside pistons are are hit toward the inside. I did a timing set, all new gasket set, and plan on replacing the stock cam while its apart. Which is another question i have about a cheaper lobey cam. A friend has a brand new set of edlebrock aluminum heads with 2.02 stainless valves for $1000. My iron heads are 1.88 valves. Would it be more economical to rework my heads to bigger valves or buy the eddys? I only plan on running this setup to get me thru summer and then taking it to a 408 stroker. Any input is helpful