Thanks for your input Flux, I appreciate it. The magnets I found on eBay of N50 are $180 for 20 in the specified size. I think that is a pretty good deal, though I will still need to get four more. Do you have any links to good deals from reputable sellers of the N35 because I would like to keep everything to plan as best as I can. I will be running a 48VDC system so I have thinner #17AWG wire already.