I would definitely go dry then. Simply because the principle of EI is to basically waste ferts. If you use EI with PFertz(and that is basically what it is) then you are wasting a lot more money.
THey are great products, but little leaves me to believe they are anything more than dry ferts in solution, with pretty bottles(head over to barrreport.com to see a few opinions).
Figure out your EI dosing regimine in the dosing sticky above this thread. Then order from Greenleafaquariums.com or aquariumplants.com or your local hydroponics store, then order enough measuring spoons in the small sizes you need to be able to just keep the appropriate spoon in each bag/jar. I like the little storage containers found at walmart or target in the kitchen section. The nice looking metal or glass ones. I label them with a marker(it wipes off with alcohol).
Good Luck. Dry might seem challenging, but it really is simple to pull off. If I can do it, any moron can.