Joe, the 50 hour service is relatively simple. I don't have the schedule in front of me but on the HST you can add in about $100 for the oil. The filter is a high pressure filter. I can't remember, but it seems I bought 2- 5 gallon buckets of UDT. Engine oil change is easier then a car, that filter is about $6. The other filters are about $50 for the two. The HST filter is a high pressure machined filter. The hydraulic filter is nothing special other then a big magnet at the base to help retain metal shavings. If your not comfortable doing it yourself, then consider the dealer, but get a full cost to change all the oil including the front axle. If it were costing me $300 in labor to do this relatively simple task, I'd learn pretty fast. It is simple when done in steps. Do one thing one day if necessary and tackle the other another day. The fuel filter on my Kubota has yet to be changed and it is perhaps the one thing I go off schedule on. I don't believe it is necessary to change the filter unless it gets obviously dirty. I use clean diesel so figure it will be some time before it gets changed. The fuel filter is cheap, but changing it as manual suggests is in my opinion is unncessary. You are more likely to introduce foreign objects into the fuel system changing the fuel filter then perhaps at any other time. If you decide to tackle it yourself, rest assured, many folks here have done so and found in some cases it to be a little messy changing the hydraulic fluid, but learned a few things in the mean time.