Scooterotica

Hello all ,
Looking for some advice for what is the best 60mm x 110 stroke crank to use on a ts1 build and what if any are the benefits over the 58mm .also should it be welded to stop twisting Any advice on suppliers I would be grateful.
Budget is around the £200 -250 area
Thanks in advance
James

Harry barlow does a nice crank at that spec for about 200 his 62, s are 300 and 64 are 400 but there not straight fit give proporting a call