What do you mean by solid? If you mean 'high quality' as opposed to "low quality' that might provoke some responses on this forum! As for affordable, what do you mean? Some people might afford £10,000 ($13,000) and often do or have to, others could only afford half that so don't bother based on pay rates in certain areas of the market!
My advice would always be to anyone, do the research, however, the numbers I mention here are about the going rate for a good and reputable EASA FI course in the UK and USA. Given the cost of operations and the prices charges by top notch FIC instructors who deliver high quality training (which is important), I fail see how this could be offered much below these amounts. Others will no doubt disagree - we shall see.
Good Luck!
SJ