Welcome On Board Mr Newbie.
Go to your local SUP outlet and have a look at the brand name paddles. Fanatic, Naish, Starboard all have quality affordable paddles that will fit your requirements.
Have a talk to the sales people and let them know what you do and they will have some suggestions for you.
You are right most regular SUPpers keep hold of paddles.
You shouldn't have to spend more than $250 to get something to suit you.
Have fun.
ET.