Whats wrong with normal, decent quality flat pinned hinges? They are in my opinion the first choice! Anyway...what does Dave supply with the kit?
Use them... I suppose they work for him and he's not to shabby when it come to designing and flying aeroplanes... If the aeroplanes a couple of months away I wouldn't worry to much about it. I certainly wouldn't bother buying a ARC on the grounds of installing a couple of balsa blocks for a hinge points. Forget about the extra work needed to film it...you've got to prime, sand, prime, sand, paint, mask and paint the cowl and spats. Jez' just that proccess is worth the extra cost.