is this a good price for W2's/will it work for my combo

I had an offer on some W2,s complete with Jesel rockers for $1650(which is cheap)but I had just purchased the Eddy RPM,s.With the W2,s you have to swap intakes and I believe you would need atleast 1 7/8 headers for them to perform properly.Don,t know how well they,d work with flat tops.