I'd try local sportsmen clubs like Downriver Walleye Federation -- they have a lot of guys that fish Erie, Detroit River and Lake Saint Clair. My guess is there are more guys that would be interested in that group than on this site.
In any case, good luck, you sound like a fine fishing partner.
2005 Boston Whaler 190, 150 OptiMax -- sold
2007 Triton 220 LTS, 225 E-Tec -- sold
2013 Lund 1800 Tyee, 150 Merc 4S -- sold
2015 Lund 2000 Alaskan SS, Mercury 4S 115 CT -- sold
2018 Ranger RP190, 115 Yamaha VMax SHO -- sold