'66 sbc motor mount perches

[cheavy metal]

any one here from Canada got a spare set of '63+ motor mount perches they don't need? I have found them from some fine folks in the USA but with the exchange and shipping the cost goes double to triple. I need a set for my '66 GMC upgrade to sbc 350. I have a '81 Silverado front cross member already installed but from what I can find '63 and up should work. I've heard conflicting on the I6 perches but the main stay of response says only the drivers side will work so I'm looking for a set of C-10 and or C-20 sbc perches for a '66 stock V8 or sbc upgrade. I know CPP and LMC have new after market but almost $200 USD puts it a little outta my pay grade [considering used factory run between $20 and $50 CDN] please rsvp if you have a set and we can make the arrangements to get me rolling. cheers. gettin our kiks from '60 to '66