Should I go brushless: Truggy? Buggy? 1/12 truggy? (crt.5)?? Need help! (have MM/VXL)

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The length of the mayhem st pro is 19.4 and the width is 16.5

The crt.5 is 14 length / 11 width

The rustler is 16.7 length / 12.6 width
My rustler is probably about 17.5 length and 14+ width.

For comparison an ofna 1/8 buggy I looked up (hyper 8.5) shows up as 18 length / 12 wide

SO.... I am still confused... Should I go with a true 1/8 truggy so I can run truggy tires or my blazer tires.

Get the crt.5 and try to make it wider/longer (thinking I dont like this idea...seems to small too me)

Get any old 1/8 buggy roller I can find CHEAP and make it brushless.

Any help? PS im a bit tipsy and I apologize for the continous posts and non-sense! But on a serious note I dont know what to do!