Greetings,
Mr. S. Welcome aboard. Whilst I do not wish to dissuade you from installing a thruster, either bow or stern, might I suggest you wait for a while before you make any changes. Could be you might be able to maneuver just fine without the added assistance and expense. We've learned over the years and several boats that living with a vessel for a period of time allows one to make much better choices as to any changes/improvements that might be done.