Operating Costs

[norriscathy]

Getting very, very close to purchasing a NA 337. I've got a handle on most expenses: Fuel at 20 gph; insurance $1,000 per year (liability only, no hull); engine reman $35K; engine overhaul $25K; T-Hanger $40 per month. Just can't seem to get a handle on other operating/fixed expenses. I've numbers as high as $445 per hour! Once everything is in good shape does anyone have a good fix on 337 expenses? Doubt I'll fly more than 75-100 hours per year. Thanks for your help.

Norris