Convert .obj to solid STL. 3d model

Create from scratch or convert an existing 3d model of a BAE HAWK completed file from you is to be delivered as .stl as 1 complete shape and also broken into individual components for print of 3d model for RC helicopters (see attached plan) We intend to use the finished print as a plug for fibreglass mould creation so a knowledge of 3d printing and model making is useful a passion for detail and scale accuracy is a must You will be supplied with a complete model and then all you have to do is convert to a solid stl and "slice it up" i look forward to questions and discussion on this project which will hopefully lead to more models being created this way for the right freelancer ::NOTE:: further information - please see the attached files the HAWK needs to be converted to a solid then split into bricks for print the end result to be as per the jet image (see result B) - you only need to do 1 half of the aircraft as I can mirror the other side Using the supplied .obj file (image A) chop it into blocks that fit my printers size and deliver each block as a separate .stl file as per (result B) the finished fuselage is approx 2.2m so i anticipate it being split into approx 40 blocks i hope this extra information helps