Electronic distributor kit

My old dual point distributor on my 70 340 is crapping out. I would like to change over to an electronic unit. I would need the dist.ecu, wiring harness,and ballast res. I think. Please let me know if anyone has one for sale. I also was thinking about the ones on ebay from procomp and proform, but after reading some posts here I guess they are basically junk. Thanks