operating costs

[Timm Rawlins]

I would eventually like to buy an 85 hp j3 (or simmilar) with a reasonalbly low time engine - judging from what I've seen I'll have to pay between 30 and 40k I'm a lowtinme pilot - 200 hours (all tailwheel) - I'm wondering what operating costs would be per hour - fully loaded (insurance, maintanance, gas, oil, tiedown, kitty for major overhaul etc.- ) IN other words if I put 20 % down, and finance the rest I'm trying to figure what its going to cost me - any ideas, advice etc would be apreciated.