It is not worth to add options to a TT01 like this if the major purpose is to increase the performance. There is no way for a TT01 to get up with a pro-chassis (No tell me you change everything but only keep the name). You may not really see the big different if you compare with 415 or 416 as they are ready not the best in term of material used. Try compare it with other brand's top chassis, you will notice that some parts in TT01 cannot withstand the speed in the high end race nor, have enough durability. There are so many factor to make a high end chassis lose to TT01. Tires and setting are the major reasons. A wrong setting will turn a pro-chassis into a rubblish. This situation seldom appear in Tamiya's low-end chassis. The original setting of Tamiya's low-end chassis is state of art.
Said a lot of stuff. The main point is ....if upgrade the TT01 is for fun and happy-looking outlook!!! Go ahead!