i was going to ask, which version will you be building, the Original Terkol (green) or the new Seetrans (Red)
these colour schema's can be seen in this forum.
you will find you will need a fair bit of weight if you going for Lipo's, i have 2 x 12volt 2Ah (lead gel cells) in my Lis Terkol plus a few grams of lead, to get her down to her waterline.