1. Fork extensions should be no longer than 1/3 - 1/2 longer than the length of the original fork depending on the manufacturer of the extension - so you will need longer forks than 72". Check with your authorized fork lift dealer. And have them provide a net lifting capacity rating to be certain this unit will fit your needs.

2. With low hour usage I would recommend gasoline or LPG fuel - no diesel. Diesel engines are most efficient when they are full warmed up, under load and operated at a constant speed vs slow, stop & go. In the long run this means less maintenance on the engine, especially the fuel injection system.

3. I understand the need for dual front tires - but I would suggest you go with solid soft ride pneumatic tires (all the way around) vs air filled. Save you time & money in the long run - amazingly most flat tires are discovered in the morning when you are coming to work. It is not uncommon on a hard pack gravel yard that a rock can get lodged in between the dual tires & cause two tires to go flat Secondly, with air tires you will need to have an air compressor that can provide a line pressure equal to or greater than the required air fill pressure of the tires - these can be in the range of 95 -125 psi - check with the dealer. Tire pressure must be maintain to assure rated lift capacity.

Hey. this is my "free" 2.5 cents worth.