I was in same position and decided to go with one done by an industry pro that's resin and metal. However, because I like realistic look and feel, I paid the extra. I could have built one cheaper myself which you can do by buying a 1996 Hasbro E-11 off eBay and the Dooby Kit then panting. The Dooby Kit is not hard at all. There's several YouTube vids to show you exactly how..even if you are not building inclined. I priced it at 60-80.00 to do yourself or 160+ USD to order off a reputable source you can find here. I'm in Canada so I was lucky to find a buddy here and it was around 220 delivered with a 4 week build time.<br>
P.s the Dooby kits are not accepted for Centurion approval per the info on the board. If I'm wrong I'm sure the Brethren here will enlighten you.<br>
Good luck.