BTW, I have two footitis as well. I started looking around for a mid 2000's 520 or 521 last month. Tough to find one with the options I'm looking for...lots of single console boats out there but this time I'm going dual. I've also been glancing at walleye boats like you. I fished a tournament on Erie 3 weeks ago and it was a killer. There's that other site that has a really good classified section for multi-species boats to check out. Don't know if I can post it here...shhhhh here's a clue...starts with Walleye....ends in Central.
Good luck! This is a good time of year to find a used boat stateside and drag it home.