Crossover Help for Seas Kits

I'm thinking about building either the "Thor" or "Trym"

My question is :
Can I substitute the Seas T25-001 instead of the T25-002 for
the tweeter .....due to the fact it costs about half as many $$$.
Do I need to modify the crossover or just straight swap the tweeter.
My knowledge of crossovers is pretty average........

Thanks in advance
I recommend you the Thor. A friend has built them and they are wonderful. I also recommend you to follow the original design even if it is more expensive since Seas did a lot of work optimizing the box/crossover/configuration. By the way, if you plan to do the original design, Solen sell the whole kit (without the wood).