I'd suggest that the marine radio is a higher priority than downriggers (of either type). You can always catch fish with a banana weight and a cut plug but you don't want to die. A good rechargeable Std. Horizon model floating portable VHF might save your life someday. Cost is about $100-$130US and they have a rebate on them until the end of the month (at least in the US don't know about Canada).