I think it's possible natively though, I would probably have to work with you one on one to get this working.
I can see the user selecting qualified Tire SKUs by choosing a Tire Type.
That would qualify a large set of Tire Sizes, which in fact would be a whole set of particular Tire SKUs which would meet the Tire Type.
So say I'm looking for High Performance Tires, and a whole set of possibilities open up. That will be done in Quick Base my having a User Focus Table where the key field is the Userid and recording that I'm looking for high performance Tires.
then I drill down to choose my vehicles and identify my daily drive which is currently a year 2000 BMW 328. That will identify a whole set of Sizes which Qualify. Again, the valid sizes will now be Illuminated because they are the valid sizes for my particular Bimmer model year for my trim.
So now the set of possible Tire SKUs from the Type selection can be dramatically lowered as we now know the sizes which are possible and the Tire which are the right Type and the right Size are now illuminated.
but now we can identify the wheels which would support the illuminated Sizes for the illuminated Tire SKUs.
In my head, it sounds possible. Contact me via email if you want to discuss working through this together to implement this via the user focus technique. Basically the User Focus technique will put focus, for any particular user, on their selections and flow that information through the relationships using summary fields to illuminate qualified choices.
I can be reached via
www.QuickBaseCoach.com or mark.shnier@gmail.com
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Mark Shnier (YQC)
Quick Base Solution Provider
Your Quick Base Coach
http://QuickBaseCoach.commarkshnier2@gmail.com
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