I would make the Baja brushless as you don’t have go 8s or higher but be prepared to have spare rear tyres/foams handy!
Also for me I only have brushless as I can run them anywhere and I have three sets of 4s lipo’s which fit my KM Evo Baja and my Xmaxx (which is my go to truck at the moment).
I would love a 5ive but I no that I wouldn’t use it much. When me and Evssv meet up he brings his 5ive and I bring one of my brushless, we have fun whatever we’re running.
Get it finished and get it out.