I've been working on completing the 2019-20 Upper Deck Allure Steven Stamkos rainbow for the past 5 years on and off. Right now I'm just missing the big cards (surprise surprise). I was just wondering if anyone had any leads into where the remaining cards like the 1/1's (golden treasures/printing plates). I'm assuming they're in people's private collections and will never see the light of day or they just haven't been pulled and are still in boxes. I know the blue line auto /25 is currently listed on eBay I have been in contact with the owner and we are unable to meet on a price. Same with the purple diamond auto /10. Any information regarding the whereabouts of any of the remaining cards in the set would be greatly appreciated. Thank you!
Base - ✅
Pewter - ✅
Red rainbow -✅
Red rainbow jersey - ✅
Sunset - ✅
White rainbow - ✅
Yellow taxi -✅
Orange slice - ✅
Green quartz - ✅
Steel - ✅
Blue line /25 - ❌
Blue line auto /25 -❌ available listing
Purple diamond /10 - ❌
Purple diamond auto /10 - ❌ available listing
Golden treasures 1/1 - ❌
Printing plates - ❌