UK Expat pension and investment advice

I seek expert counsel regarding prudent investment of my retirement savings after relocating from the United Kingdom to Turkey. Presently, I have an employer pension with Standard Life carrying competitive annual fees and an stocks and shares ISA that has historically outperformed the managed pension option. However, upon residing in Turkey from mid-June, I will no longer contribute to an employer pension. Therefore, I require sage guidance on replicating a similar investment vehicle while circumventing excessive upfront and recurring charges associated with some options. A financial institution proposed a product entailing a £595 initial charge and approximate ongoing 1% fees, which seem rather steep. An experienced advisor well-versed in cross-border retirement planning can review my current holdings and UK pension contribution history to craft a customized solution. The ideal candidate will suggest cost-effective alternatives leveraging my existing savings to facilitate continued growth towards a financially secure retirement abroad. Their expertise assisting other expatriates transition retirement accounts internationally would be especially valuable.