Honda-SOHC

Hi, hoping a more knowledgeable person than me can advise...
I've just stripped my carbs down on my 1970 USA K1 and found the overflow brass tube broken off in float bowl on number 2 and some numpty has pinched the output and then stuck the overflow tube back on!!
So needing a new float bowl, have looked at CMSL website and they show 2 versions according to serial number. Mine is the earlier (frame no 1061605) and typically is far more expensive (£178) - the later bowl looks nearly identical and is only £25.
Does anyone know if I can get away with using the later variant - weblink for reference - https://www.cmsnl.com/en-gb/honda-cb750k1-four-1970-1971-usa_model14354/partslist/E26.html

Thanks in advance

Hi All

I need to source a replica seat for my K1. Unfortunately, I can't justify £1100 for a NOS item

It seems Yamiya only offer a low version currently so I'm limited to CMSNL item @ £700 or Monkeydax (Vietnam) @ £190 + shipping and all associated costs

Does anyone have experience of either product or any other alternatives?

Thanks in advance