What body to use for a Rambo custom/Kitbash

Well, I want to put together a custom Rambo figure, but I am not sure what body I should use for it. I was told the M33 would work, but I think that its not muscular enough, but the M34 is a bit too large. So any ideas/Suggestions?

Have a look at the Muscle body's from World Box Z.D

For seamless bodies, your effective choice is between Phicen/TBLeague's M33 and M34. M30 is also muscular, but shortish and (at least in the past) greyish. Jiaou's 12D has the weirdly wide hips and narrower waist. There might be a Kaustic Plastik body with seamless top part that you can use, unless these are all gone now. Or perhaps you don't need to show much skin, in which case you can probably go with an open-jointed hard plastic World Box body (they have a couple of muscular bodies). There are also the JX-S02 (which I have reviewed) and the Zica Muscle Body 1.0, which is decently built but has a somewhat cheap plastic look to it (which would be fine if concealed or painted), but I haven't gotten around to reviewing it yet. EDIT: just reviewed and added link below.

https://onesixthfigures.forumotion.com/t3013-tbleague-phicen-seamless-bodies-with-steel-skeleton-catalog-updated-continually

https://onesixthfigures.forumotion.com/t3830p20-jiaou-doll-male-bodies-10a-11c-12d-17a-updated-may-2023-with-tbleague-m30-m31-m32-m33-m35-comparison

https://onesixthfigures.forumotion.com/t2310-world-box-at027-mini-review

https://onesixthfigures.forumotion.com/t6256-six-new-ish-bodies-comparison

https://onesixthfigures.forumotion.com/t7181-zica-toys-muscle-body-1-0-afb-001

Do you already have a head sculpt, or will you need to find one.

Sometimes it is easier to select a body after finding a head sculpt, as there are different types (attached neck or no neck) of heads and colors and sizes tend to vary slightly.

The head I saw on E-Bay has no neck, so yeah, the body needs to have a neck. I was thinking about the M30, because Rambo is only 1,78 m tall according to wikipedia, he is not as tall as say, Dutch Schaefer who is 1,86 m tall.

I found some Sylvester Stallone heads and a newish M30 I got last year, and can report that they seem to work well together; the newer M30 seems to be given the current or more recent male suntan skintone, which is better than the original rather gray one. With the first head, he stands just over 28 cm tall on this body. With footwear he would be taller.
There are also ankle extenders on eBay, of various sizes; the smallest one might do the trick.



Also reviewed the Zica body I mentioned here:
https://onesixthfigures.forumotion.com/t7181-zica-toys-muscle-body-1-0-afb-001

Hope this helps.