I guess you could get him the generations, RTS toys as everyone has already mentioned... in robot mode though they may not match quite well as MP size towers well above, but the vehicle modes are somehow relatively correct in scale ...although if he is hooked on G1 anyways it wont matter much to him hehehe , Prime looks so tall when next to everyone else in his troops in G1 toons so I guess he wouldn't mind - scale is always an issue anyways with TFs hehehe







for Seaspray you might have to grab the bayverse one - though opt for the Jap version as it has brighter (more G1 match) colors than the dull blue and yellow orange colors that the Hasbro has.