At my preferred Australian online shops;
Tamiya's 1/35 M41 Walker Bulldog is going for about AU$27.50 at the moment.
Hobby Boss' 1/35 LAV-150 Commando AFV w/Cockerill 90mm Gun is priced at about AU$40.50 (which is stupidly high, imo) but is out of stock.
If you're willing to accept the alternate, then the Hobby Boss 1/35 LAV-150 APC 90mm Mecar Gun is a couple of dollars cheaper at AU$38.50 (again, over-priced, imo) & is also out of stock.
This would leave you with a M41 turret to put on a LAV-150.
I would assume that in the US prices would be both lower in raw number & real value.