May I make a suggestion, why not have the drivers seat back re done as well as the back seat back redone, then have the rest dyed to match, it would be a much less costly undertaking. In my area (Boston) we have a guy who does repair and re-dye jobs for all the local dealerships and what a job he does, he did my front seat squabs only and he matched the other leather to a tee. I'm sure there is a similar person in your area. Thinking further about it Jim (that's his name) could probably do some type of repair on the rips as well, (although he would tell you he can not guarantee it), then dye over it. Again, surely there must be a similar craftsman in your area.
I had him also do two repairs on my boat, I had two tears on the back bolster, although he said he couldn't guarantee the repair, I must tell you this is season two with the repair, not only is it just fine, even in a marine environment, you couldn't find the repairs unless I showed you where and then, I still don't think you'd see it.
I will post a pic of my seats once I find one
