Actually, if Jet-A is not available, I would spec P50 home heating fuel as Option-1 (A lot cheaper too
Basically, Jet-A with slightly higher specific gravity, and less additives.
No.1 Diesel would be Option-2 No.2 Diesel, as Option-3. (As Bill says, a little naptha, or straight gasoline added assists lightoff.)
When I have to test run customer's engines on liquid fuel, I use P50, and the engines start and run exactly the same as on Jet-A/JP4 (After adjusting the SG compensator on the FCU)
I do not recommend JP8, unless you know it is fresh and you get a great deal, price-wise.
Natural gas fuel is simply the best way to go.