I was going to suggest Germain's Finegrain but it occurs to me you might not have Paraphenylenediamine!! It's a great developer:

750 cc Water
7 g. Metol
70 g. Sodium Sulfite
7 g. Paraphenylenediamine
7 g. Glycin
Water to make 1L

I use stock in a Jobo, normal time for TMY is 6"45" , 68 deg. F. but this is a little dependent on the pH of your water...Evan Clarke