I have a set of these however the woofers have been stolen
So I have the tweeters and xovers.

I am unsure what would be better, spending about $200 on 2 new woofers, or just spending about $300 for a brand new set of splits

They are to go in the front and the doors will be sound deadened using Dynamat. I am still unsure weather or not I will run amps/subs

A new set of splits would be a better investment and mount your tweeters low, ie Kicks, then run your spare tweeters and crossovers at their lowest output, -4 or -6dB, using them as ambient tweeter, will increase staging height and utilise all your stuff