FS/FT: Canon 100mm f2.8 L for Canon 70-200 F4 IS L

I've got a Canon 100mm F2.8 L that I'd like to trade for a Canon 70-200mm F4 IS. I'm going to Iceland in May and I think a 70-200 will serve me better than a macro lens. Got this from my dad who purchased it new from B&H but did not keep any of the boxes so it's just the lens. The 100mm is mint (DateCode UZ) so I'd like a straight trade if possible but I'm willing to add a little bit of cash to get the 70-200 depending on condition. I'd prefer a trade, but would be willing to sell for $750 including shipping/paypal/insura​nce. Thanks!