okay i have a D15b2 and was hoping to get a new ride, i found a 94 honda civic 5 speed. Its has a JDM D15B vtec the only problem is it pops out of 4 and 5 gear.

Is it possible to replace the transsmission on these two engines?
i know the newer one is hydralic while the older one isnt. will there be any problems with this such as mounting and ratios?
Or is there an easier way to fix/just looking for a cheap fix because my car was totaled by a 1 ton van.