It's a shame you have such a bad distribution of the TAG Heuer Connected Modular line in your area... Come to Barcelona on vacation and buy it here!

I guess your other option is ebay. Try this seller in Spain. I bought some of my straps, bracelets, buckles, and lugs to him. Everything brand new and at very good price:
https://ebay.es/usr/relojesswiss

 

Nice!!
I think you didn’t consider your Modular collection completed until the arrival of the gold lugs!

 

I washed my brown calfskin strap yesterday with Moussel Aloe Vera gel and water, brushing the stitching with an old toothbrush, and it looks like new again (just wait for the strap to be completely dry)... maybe you could try the same

 

Updated picture of my “TH Modular collection” after three additional arrivals: yellow rubber strap, white rubber strap with TAG Heuer logos, and white leather strap with green stitching from the Golf Edition

 

Probably!
And mostly since I found this official display for the TH Connected Modular 45!

 

And this is probably the last updated picture of my “Modular Collection” after last two arrivals (green and electric blue rubber straps), because there are not more different straps in the TH catalogue!



Still looking for the Red Bull Racing Edition strap (blue calfskin with red stitching, not sold separately), but with no luck up to now...

 

I eventually found the strap of the Red Bull Racing Special Edition, so this is the last updated picture of my Modular collection, including this last arrival!




So it now includes the four exclusive leather straps from the different Connected Modular Special Editions made. These straps are not sold separately, so they were hard to find (from left to right):

Kingsman
Red Bull Racing
Manchester United
Golf Edition

 

Thanks!

 

My collection already includes all the available straps and bracelets from the TH CM45 accessories catalogue, and also the four leather straps from the Special Editions (not sold separately), three of the four types of lugs (I’m not going to buy the lugs with diamonds!), and also two of the three existing mechanical modules... because the third one is the Heuer 02 Tourbillon, and it’s too expensive for me!




So this Tourbillon module will be probably forever in my wishlist, unless I win some kind of lottery!

The blue calfskin strap from the Red Bull Racing Special Edition was the last one I really had in my wishlist, so I should consider the collection is finished... although there are still three straps that could have place in my collection if I find them : the orange rubber strap with TH logos (only available in USA), the pink rubber strap with TH logos (from the Giro d’Italia Special Edition), and the white and painted rubber strap from the Alec Monopoly Special Edition: