I think this is a good idea. I am in a bass club. We have boaters and non boaters. I wouldn't call it pro's and amateurs/juniors, bc some really good fisherman don't have boats.
We have a meeting each month and draw partners. We set a non boater fee to help with gas, but that fee also includes us riding to the lake with them and at most lakes within an hour drive its $25-35. The boater is in charge of where to fish etc but can get advice from the non boater. But the non boater shouldn't expect to get to choose where or how to fish.
I think you could get a lot more people out doing a draw. Many boaters don't have a partner willing to commit and obviously non boaters don't. It would be a little different with your weekly tourneys as you would probably pick right before take off. May be times where you have a ton of extra non boaters which you would hate to send away if they came to fish or too many boaters. But if you went the 1x a month on a weekend you could easily pull it off.